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()是指在技术系统的进化中,子系统的匹配和不匹配交替出现,以改善性能或补偿不理想的作用。
A. 提高理想度法则
B. 完备性法则
C. 能量传递法则
D. 协调性进化法则
大型机械在临近营业线施工时,必须严格执行的防护制度和应该做到“五个一”的具体内容是什么?
When replacing a part with a spare one, we should fill in tile spare parts consume table in time and make a mark in brief for ()
A. the reason of replacing
B. the course of replacing
C. crews who do this work
D. where and when the replacing being done
() is a defined area within which ships must use particular caution and should follow the recommended direction of traffic flow.
A. Recommended Direction of Traffic Flow
B. Roundabout
C. Separation Zone or Line
D. Precautionary Area