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氧枪自动制动装置
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氧枪自动制动装置
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冶金安全
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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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First Municipal Library of Peiping
First Museum Revolution
first Napoleon point
First National Calligraphy Contest for University Students
first National Census for water
First National Conference on Workers and Peasents Education
First National Congress of Chinese Nationalist Party
First National Education Working Conference
First National Games of China
First National Health Conference
First National Joint Performance of Modern Dramas
First National Joint Performance of Quyi Troupes
First National Organizational Work Conference of the CPC
First National Population Census
First National Symposium on Commemorative Museum Work
first nature and second nature
first Neuberg circle
first Neuberg point
first Neuberg triangle
first normal form
first normal form, 1NF
first normal stress difference
first number-class
first objects
first obstruction
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