metal-asbestos 金属石棉的
Flat metal jacketed asbestos 金属包石棉平垫片
asbestos-filling metal gasket 带石棉金属垫片
asbestos-covered metal [材] 石棉被覆金属
asbestos covered metal 包石棉金属
With sulfuration metal flange and asbestos covering layer.
连端硫化金属法兰，外有石棉保护层。
Head gaskets are made of thin sheets of soft metal or of asbestos and metal. All cylinder, water, valve, and head-Bolt openings are cut out.
气缸盖用的密封垫是用软金属薄片或金属和石棉组成的薄片制成，留出所有的气缸孔、水道孔、气门孔和气缸盖螺栓孔。
This article briefly discussed the role of free radicals in the lung cancer induced by physical and chemical factors such as smoking, occupational dust particles, metal ions, quartz, asbestos.
自由基医学是近年来兴起的一门交叉学科，本文对自由基在吸烟、职业烟尘微粒、金属离子、石英、石棉等理化因素致肺癌过程中的发病机制进行探讨。
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