... Proportioning probe 比例探头 Protective material 防护材料 protable X-ray generato 便携式X射线发生器(指便携式工业X射线探伤机) ...
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thermal-protective material 隔热材料
silicone protective material 硅保护材料
waterproof protective material 防水保护材料
ESD-protective material 静电放电保护材料
bio-protective material 生物防护材料
endo protective material 内源性保护物质
laser protective material 激光防护材料
In normal circumstances merely placing a layer of protective material on top of a levee in this way would not do much good.
一般来说如果只是这样在堤坝顶部铺一层类似的保护材料在漫坝时不会起到什么作用。
Earwax is a protective material that contains bacteria-fighting elements, but it sometimes accumulates and has to be cleaned out because it can impede hearing or cause pain.
耳垢含有对抗细菌的成分,是一种保护性物质,但有时它会堆积成堆,影响听力或造成痛苦,因此必须被清理掉。
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