在顶棚速度监视区内,报警速度=允许速度+2Km/h,SBI=允许速度+5Km/h,EBI=允许速度+()Km/h(允许速度大于250Km/h)。
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以下不属于焊工安全教育方法的是()。
A. 培训考核
B. 技术比赛
C. 复审
D. 安全检查与宣传
When reassembling the bowl of a disk-type centrifuge, the bowl or locking ring is rotated ().
A. clockwise, due to the bowl rotating clockwise
B. clockwise, due to the bowl rotating counterclockwise
C. counterclockwise, due to the bowl rotating clockwise
D. counterclockwise, due to the bowl rotating counterclockwise