请输入您要查询的字词：
编者注：本词条为中国台湾地区学术名词用语，仅供参考。
单词
无用的
释义
NUL (null)
无效的，无用的，不存在的，没有的，零，零位，空的
通讯工程
faulty
有故障的，不合格的，无用的
电力工程
faulty
有故障的；不合格的；无用的
电机工程名词
invalid
无效的，无用的，作废的
电力工程
invalid
无效的；无用的；作废的
电机工程名词
negligible
无用的
电子计算机名词
null
无效的，无用的，不存在的，没有的，零，零位的，空的
电力工程
随便看
closed conduit
closed conduit wiring
closed contact
closed container
closed contour
closed control
closed control of system performance
closed convex function
closed cooling box
closed cooling system
closed cooling water{=CCW}
closed cooling water path
closed cooling water system
closed core
closed core transformer
closed core type
Closed correspondence
closed coupling
closed covering
closed crank case
closed cup flash test
closed cup test
closed curve
closed curve sequence
closed cycle
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更新时间：2026/6/18 6:12:55