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单词
procedure mask
释义
procedure mask
网络
医用口罩
网络释义
1.
医用口罩
3、普通
医用口罩
（
procedure mask
） ：符合 YZB，为无纺布或复 合材料制成，采用松紧带。3 层材料分别为：外层抗水、中 …
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例句
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before dawn
before day
before delete
before delivery
before-dinner
before eating
before evaluating for yield
before evaluating progenies
before everything
before ... eyes
before ... face
before food
before god
before-hand
beforehand
before hand
beforehand regeneration
beforehand with
beforehand with one's payment
beforehand with the world
before hemodialysis
before her time
before her very eyes
before his time
before hours
英汉双解词典包含2704715条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。
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更新时间：2026/10/23 15:21:22