色谱分析白酒的香气成分,含量高于()的称之为骨架成分,它们的含量约占香气总量的()。
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作业区各作业位置至相应坠落高度基准面的垂直距离中的(),称为该作业区的高处作业高度。
A. 最小值
B. 平均值
C. 任意值
D. 最大值
请阐述布局改善基本改善原则,并举例说明你所在班组的布局存在哪些不合理,应当怎样改进?
Which of the following problems can occur if you continually fail to drain off condensate from a starting air receiver?()
A. Corrosion and eventual failure of the tank
B. Gumming of the tank relief valves
C. Immediate failure of components downstream of the compressed air system
D. Boiling of the water oil mixture as pressure is reduced
串补电容器应满足《电力系统用串联电容器第1部分:总则》(GB6115.1-2008)5.13项()试验要求。