... 防喷器最大工作压力 maximum working pressure of blowout preventer 防喷罩 spray guard 非常规石油 non-conventional oil ...
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短语
防喷罩和防震架
pop shields and shock mounts
喷头防护罩
sprinkler guards and shields
喷漆防护面罩
paintball facemask
防毒面罩喷漆
gas mask spray paint
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