Further opening the throttle valve activated the main fuel jet.

当节流阀进一步打开时，主喷口开始工作。

Air inlet throttle valve with pneumatic actuator and positioner.

空气进气节流调节阀：带有气动定位和执行机构。

A vaporiser (10) is located upstream of the throttle valve (11).

汽化器(10)位于节气门(11)的上游。

A throttle valve (11) controls the amount of air admitted to the combustion chamber.

节气门(11)控制进入燃烧室的空气量。

A disk turning on a diametrical axis inside a pipe, used as a throttle valve or damper.

节流阀，减压阀：管道内沿直径中心轴线上的圆片状旋钮，用作节流阀门或阀门。