以下为句子列表：
英文: 418 This is a gate valve (check valve, butterfly valve, cut-off valve, magnetic valve, remote valve, relief valve, throttle valve, cock).
中文: 这是一个闸阀（止回阀、蝶阀、切断阀、电磁阀、遥控阀、安全阀、节流阀、旋塞）。
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英文: 5 Get the throttle on early.
中文: 及早转开油门.
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英文: A solid rocket cannot be throttled, either—once lit, it runs until the fuel is expended.
中文: 此外，固体火箭也不能够调节燃料，一旦点燃了，就会运作到燃料用尽为止。
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英文: A well-adjusted engine will have a stable idle and will not surge up and down after the throttle is closed.
中文: 一个完美的调整引擎将有稳定的怠速,收油门转速会上上下下都是不正确的。
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英文: Abstract: According to theoretical analysis and experiments on the throttle control system,the quantitative relationship among the speed of executive element , the flow area of the throttle and the load is determined.
中文: 文摘:本文通过对进油路节流调速系统的理论分析与试验研究，阐明了执行元件的运行速度与节流阀的通流面积以及负载之间的定量关系。
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