题目内容
在变量泵和定量马达组成的容积调速回路中,如果将泵的排量减小,其他条件保持不变,马达的转速将()。
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在回油节流调速回路中,节流阀处于节流调速工况,系统的泄漏损失及溢流阀调压偏差均忽略不计。当负载F增加时,泵的输出功率()。
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Complete the sentences by choosing suitable words below to collocate with the italicized words.necessarynecessitya. The more we come into contact with other civilizations, the more we recognize the ____________ to know about our own history.b. To choose a host family, ask in advance the host family any questions ____________ for your making the decision.
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