partition insulatorthrough insulatorwall entrance insulatorwall insulator穿: pierce through; penetrate墙: wall绝缘子: electrical insulator; insula ...穿墙绝缘管: thoroughfare insulator穿墙绝缘导管: wall entrance insulator下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:穿墙绝缘子，即可在微信中查询翻译
