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oxygen gun brake
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oxygen gun brake
Encyclopedia
工学
冶金安全
释
oxygen gun brake
氧枪自动制动装置
防止氧枪提升钢丝断绳使氧枪坠入炼钢熔池引起爆炸的一种安全装置。断绳时没依靠重力作用使楔紧,将氧枪升降小车制动在钢轨上,不能下滑。
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pick the ball machine
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