secondary air control valve

astern selecting pilot air valve

倒车选择控制空气阀

ahead selecting pilot air valve

正车选择用控制空气阀

change over bridgecontrol room pilot air valve

驾驶室-控制室转换用控制空气阀

a valve that controls the flow of air into the carburetor of a gasoline engine.

控制空气流入发动机的汽化器的阀。

vacuum and spring operated EGR valve

真空和弹簧控制型废气再循环阀

The canister vapor-vent value is operated by vacuum.

活性炭罐蒸气排泄阀是由真空控制的。

Research and Development of the Air Brake Control Valve for 120-type Freight Cars

120型货车空气控制阀的研究试验

a gas burner used in laboratories; has an air valve to regulate the mixture of gas and air.

实验室里用的汽灯；有一个空气阀可以控制可燃气和空气的密度。

(knob which operates the) valve controlling the flow of air into a petrol engine

阻风门（开关）（控制进入汽油机空气量的阀门）

All air tubing on control and actuated valves shall be stainless steel.

所有控制阀及？上的空气管都应为不锈钢。

vacuum advance control valve

真空点火提前控制阀

Diverter valve vacuum supply hose

紧急控制阀的真空管

exhaust manifold heat control valve

排气歧管热量控制阀

exhaust by-pass valve control wire switch

排气旁通阀控制线转环

throttle positioner

节气门怠速开度控制阀

Simple air metering orifices coupled to the unique balancing regulator provide accurate control of the air-fuel( gas or oil).

简便的空气计量孔板装配在平衡阀的接口上来实现空气-燃气，空气-油的精准控制。

The fuel burner of an open hearth furnace is water cool, as is the valve that regulate the flow of air and waste gases.

平炉的燃料燃烧室是用水冷却的，控制空气和废气的阀也是水冷的。

The positive crankcase ventilation valve and gas caps with air-pollution control valves reduce volatile organic compound loss.

曲柄轴箱通风阀和配有废气帽的空气污染控制阀（使用）减少挥发性有机混合物释放有积极作用。