{"id":19686,"date":"2026-09-09T22:15:34","date_gmt":"2026-09-09T12:15:34","guid":{"rendered":"https:\/\/geoffreychen.com\/why-an-eraser-can-remove-pencil-marks\/"},"modified":"2026-09-09T22:15:34","modified_gmt":"2026-09-09T12:15:34","slug":"why-an-eraser-can-remove-pencil-marks","status":"publish","type":"post","link":"https:\/\/geoffreychen.com\/zh\/why-an-eraser-can-remove-pencil-marks\/","title":{"rendered":"\u94c5\u7b14\u5b57\u4e3a\u4ec0\u4e48\u80fd\u88ab\u6a61\u76ae\u64e6\u6389\uff1f"},"content":{"rendered":"<\/p>\n<p><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/public-assets.geoffreychen.com\/wordpress\/articles\/why-an-eraser-can-remove-pencil-marks\/0cd8d85882e3ff45c25da56c.jpg?w=1140&#038;ssl=1\" alt=\"\u94c5\u7b14\u5b57\u4e3a\u4ec0\u4e48\u80fd\u88ab\u6a61\u76ae\u64e6\u6389\uff1f\" loading=\"lazy\"><\/p>\n<p>\u94c5\u7b14\u82af\u5e76\u4e0d\u542b\u94c5\uff0c\u4e3b\u8981\u662f\u77f3\u58a8\u4e0e\u9ecf\u571f\u7684\u6df7\u5408\u7269\u3002\u5199\u5b57\u65f6\uff0c\u7eb8\u9762\u7ec6\u5c0f\u7684\u51f9\u51f8\u4ece\u7b14\u82af\u4e0a\u522e\u4e0b\u77f3\u58a8\u5fae\u7c92\uff1b\u77f3\u58a8\u7684\u5c42\u72b6\u7ed3\u6784\u4e5f\u5bb9\u6613\u6cbf\u5c42\u95f4\u5206\u5f00\u3002\u8fd9\u4e9b\u5fae\u7c92\u505c\u7559\u5728\u7eb8\u7ea4\u7ef4\u8868\u9762\u548c\u6d45\u5c42\uff0c\u5e76\u9760\u8f83\u5f31\u7684\u5206\u5b50\u4f5c\u7528\u529b\u9644\u7740\uff0c\u4e8e\u662f\u5f62\u6210\u7070\u9ed1\u8272\u7b14\u8ff9\u3002<\/p>\n<p>\u6a61\u76ae\u4e0d\u662f\u628a\u77f3\u58a8\u201c\u6eb6\u89e3\u201d\u6389\u3002\u6a61\u80f6\u6216\u4e59\u70ef\u57fa\u6750\u6599\u64e6\u8fc7\u7eb8\u9762\u65f6\uff0c\u6469\u64e6\u4f7f\u5b83\u8d34\u7d27\u7b14\u8ff9\uff0c\u5e76\u5bf9\u77f3\u58a8\u4ea7\u751f\u6bd4\u7eb8\u9762\u66f4\u5f3a\u7684\u5438\u9644\u3002\u77f3\u58a8\u4fbf\u4ece\u7eb8\u7ea4\u7ef4\u8f6c\u79fb\u5230\u6a61\u76ae\u4e0a\u3002\u666e\u901a\u6a61\u76ae\u8fd8\u4f1a\u5728\u6469\u64e6\u4e2d\u4e0d\u65ad\u8131\u843d\u7ec6\u5c51\uff1a\u6cbe\u6ee1\u77f3\u58a8\u7684\u8868\u5c42\u968f\u788e\u5c51\u79bb\u5f00\uff0c\u540c\u65f6\u9732\u51fa\u65b0\u7684\u5e72\u51c0\u8868\u9762\u7ee7\u7eed\u5de5\u4f5c\u3002\u684c\u4e0a\u7684\u7070\u8272\u6a61\u76ae\u5c51\uff0c\u6b63\u662f\u88ab\u5e26\u8d70\u7684\u77f3\u58a8\u4e0e\u6a61\u76ae\u6750\u6599\u7684\u6df7\u5408\u7269\u3002<\/p>\n<p>\u8fd9\u4e5f\u89e3\u91ca\u4e86\u4e3a\u4ec0\u4e48\u8f7b\u5199\u7684\u5b57\u5bb9\u6613\u64e6\uff0c\u91cd\u538b\u540e\u7684\u5b57\u5374\u53ef\u80fd\u7559\u4e0b\u75d5\u8ff9\u3002\u538b\u529b\u4f1a\u628a\u77f3\u58a8\u538b\u8fdb\u7eb8\u7ea4\u7ef4\uff0c\u5e76\u5728\u7eb8\u4e0a\u523b\u51fa\u51f9\u69fd\uff1b\u6a61\u76ae\u80fd\u79fb\u8d70\u989c\u8272\uff0c\u5374\u4e0d\u80fd\u8ba9\u53d7\u538b\u7684\u7ea4\u7ef4\u5b8c\u5168\u6062\u590d\u3002\u8fc7\u5ea6\u6469\u64e6\u8fd8\u4f1a\u78e8\u635f\u751a\u81f3\u6495\u88c2\u7eb8\u9762\u3002<\/p>\n<p>\u58a8\u6c34\u901a\u5e38\u66f4\u96be\u64e6\u9664\uff0c\u56e0\u4e3a\u6db2\u4f53\u4f1a\u6e17\u5165\u7ea4\u7ef4\u7f51\u7edc\uff0c\u67d3\u6599\u6216\u989c\u6599\u4e5f\u53ef\u80fd\u4e0e\u7eb8\u7ed3\u5408\u5f97\u66f4\u6df1\u3002\u94c5\u7b14\u80fd\u591f\u4fee\u6539\uff0c\u4e0d\u662f\u56e0\u4e3a\u7b14\u8ff9\u4e0d\u771f\u5b9e\uff0c\u800c\u662f\u56e0\u4e3a\u5b83\u4e3b\u8981\u662f\u4e00\u5c42\u4ecd\u53ef\u8f6c\u79fb\u7684\u5fae\u7c92\u3002<\/p>\n<p><a href=\"https:\/\/www.acs.org\/education\/whatischemistry\/adventures-in-chemistry\/secret-science-stuff\/pencil.html\" rel=\"nofollow\">https:\/\/www.acs.org\/education\/whatischemistry\/adventures-in-chemistry\/secret-science-stuff\/pencil.html<\/a><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"ABv0K3iccZ\"><p><a href=\"https:\/\/www.chemistry.ucla.edu\/news\/justin-caram-explains-the-chemistry-behind-erasers-in-popular-science\/\" target=\"_blank\" rel=\"noopener\">Justin Caram explains the chemistry behind erasers in Popular Science magazine<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201cJustin Caram explains the chemistry behind erasers in Popular Science magazine\u201d \u2014 UCLA\" src=\"https:\/\/www.chemistry.ucla.edu\/news\/justin-caram-explains-the-chemistry-behind-erasers-in-popular-science\/embed\/#?secret=8piOqn2z4h#?secret=ABv0K3iccZ\" data-secret=\"ABv0K3iccZ\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":17897162,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_geoff_meta_description_en":"Pencil marks are graphite particles held on paper fibres. An eraser transfers them into its crumbs, removing colour but not restoring compressed or abraded paper.","_geoff_meta_description_zh":"\u94c5\u7b14\u7559\u4e0b\u7684\u662f\u9644\u7740\u5728\u7eb8\u7ea4\u7ef4\u8868\u9762\u7684\u77f3\u58a8\u5fae\u7c92\u3002\u6a61\u76ae\u5728\u6469\u64e6\u4e2d\u628a\u77f3\u58a8\u8f6c\u79fb\u5e76\u5305\u5165\u788e\u5c51\uff0c\u56e0\u6b64\u80fd\u53bb\u9664\u5927\u90e8\u5206\u7b14\u8ff9\uff0c\u5374\u4e0d\u80fd\u62b9\u5e73\u53d7\u538b\u7ea4\u7ef4\u6216\u6062\u590d\u539f\u7eb8\u3002","_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[787297218],"tags":[787299979,787299978,787299980,787299981],"class_list":["post-19686","post","type-post","status-publish","format-standard","hentry","category-daily-maths-physics-chemistry","tag-graphite-zh","tag-graphite","tag-materials-science","tag-materials-science-zh",""],"translatepress_titles":{"en_AU":"Why Can an Eraser Remove Pencil Marks?","zh_CN":"\u94c5\u7b14\u5b57\u4e3a\u4ec0\u4e48\u80fd\u88ab\u6a61\u76ae\u64e6\u6389\uff1f"},"jetpack_publicize_connections":[],"jetpack_likes_enabled":false,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p1ar9H-57w","jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/posts\/19686","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/users\/17897162"}],"replies":[{"embeddable":true,"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/comments?post=19686"}],"version-history":[{"count":0,"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/posts\/19686\/revisions"}],"wp:attachment":[{"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/media?parent=19686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/categories?post=19686"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geoffreychen.com\/zh\/wp-json\/wp\/v2\/tags?post=19686"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}