无覆盖的；无壳的：无罩的，尤指常用的东西。

Having no covering, especially the usual one.

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用无罩灯去寻找漏煤气的地方很危险。

It's dangerous to look for an escape of gas with a naked light.

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报导了采用层敷工艺，使用无碱玻璃纤维布和不饱和树脂研制适于高速晒图机使用的复合材料绝缘机罩的方法。

A method of lamination technology to produce complex material insulating cover suitable for high speed diazo printer is reported, by using nonbasic gloss fibre cloth and unsaturated resin.

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