Butterfly valve through the valve shaft rotation to drive the rotation of a disc-shaped disc, to open and close a valve, cut off from the main pipe and throttle with.

进口蝶阀是指通过阀轴旋转来带动一个圆盘形的蝶板的转动，达到开启与关闭的一种阀门，在管道上主要起切断和节流用。

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It is discovered through experiments that there is bad effect in the movement when it opens wide the air throttle recirculation thus controls circulates the gate to open again below 30%;

试验发现运行中开大再循环风门的不良影响从而控制再循环门开度在30%以下；

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During a nostalgic weekend, Kevin Schwantz was on hand to regale us with the inside story of his final career victory here in 1994, when he had to hold the throttle open down the straights with his left hand - despite a dislocated wrist - just to shake some feeling back into his fractured right hand.

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Based on the black box data, NHTSA investigators found that the brake was not engaged and the throttle was wide open, according to a person familiar with the matter.

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Once out of town on the open road, I dared to press my foot halfway in on the throttle and found wind beneath the wings.

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