节流阀安装在液压泵与油箱之间的是出油路节流调速回路。
查看答案
在速度控制回路中，执行元件的运动速度取决于油液的流量，因此要调节执行元件的运动速度就是要调节液体的流量。
A. 对
B. 错
A big crowd gathered around the bus, almost _______ the traffic.
A. affecting
B. blocking
C. creating
D. mating
We need help from the other countries. But we do not _______ upon others for support.
A. engage
B. .base
C. strip
D. multiply
What time is the mail _______ on Saturday？
A. objected
B. outlet
C. delivered
D. starved
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