磨削气门则需要更多的时间。
气门挺杆为一圆筒体，坐落在凸轮上。
这里描述的节气门体组件使用的铝铸件。
Throttle Body Assemblies described here use an aluminum casting.
提供了一个气门升程连续从零到最大范围。
Provides a continuous range of valve lifts, from zero to maximum.
连续可变气门驱动系统。
为了将凸轮的运动传给气门需要一些附属装置。
To transfer the motion of the CAM upward to the valve, additional parts are needed.
苍蝇，和所有昆虫一样，通过无数微小的气门来进行呼吸。
Flies, like all insects, breathe through many tiny openings called spiracles.
摇臂向下移动的那一边推动气门杆以打开气门。
The downward-moving side of the rocker arm pushes on the valve stem to open the valve.
空气通过空气滤清器进入发动机，并进入节气门。
Air enters the engine through the air cleaner and proceeds to the throttle plate.
中空充钠气门并不是一个全新的概念，但是过去他们造价高昂。
Sodium infill valves are not a new concept, but in the past they have been extremely costly to build.
将气缸盖固定在水平面上，这便于从下方接触气门。
Secure the cylinder head on a level surface which allows easy access to the valves from underneath.
节气门体包含横跨镗孔、用于安装节气门轴的轴承。
The Throttle body contains bearings for mounting the Throttle Shaft across the bore.
当这发生时，气门弹簧紧紧地封闭气门口，叫做气门座。
As this occurs, valve springs pull the valve tightly closed against its opening, called the valve seat.
怠速转速控制逻辑是用于控制节气门关闭后的发动机转速。
The purpose of the idle speed control logic is to control engine speed at closed throttle.
通过油门踏板，你能控制经过节气门进入发动机的空气量。
You control the amount of air that passes through the throttle plate and into the engine with the gas pedal.
在这些极端恶劣的发动机环境中，传统气门材料无法承受这种“酷刑”。
In these extreme engine environments, traditional valve materials can't stand up to the punishment.
那金属轴叫凸轮轴，在发动机里的每个气门一般有各自的凸轮。
The metal shaft, called the camshaft, typically has individual cams for each valve in the engine.
一套气门开启机构包括一个气门挺杆和一个在凸轮轴上的凸轮。
The value-opening mechanism includes a valve lifter and a CAM on a camshaft.
一套气门开启机构包括一个气门挺杆和一个在凸轮轴上的凸轮。
The value-opening mechanism includes a valve lifter and a cam on a camshaft .
那金属轴叫凸轮轴，翣在发动机里的每个气门一般有各自的凸轮。
The metal shaft, called the camshaft, typically has individual cams for each valve in the engine.
为了保持汽车预想的速度，在汽车速度改变时应调整气门的位置。
Throttle position is changed as vehicle speed changes to keep the car at the desired speed level.
在发动机中，凸轮轴上的凸轮控制进气门和排气门的开启和关闭。
In the engine, cams on the CAM shaft cause the intake and exhaust valves to open.
四冲程发动机的工作循环是以活塞在上止点、进气门打开为开始的。
The cycle of operation of the four-stoke engine begins with the piston at TDC and the intake valve open.
由于进气门关闭、排气门也已关闭，现在活塞上部的空间被密封了。
The space above the piston is now sealed due to the inlet valve closing and the exhaust valve having already closed.
发动机越来越小巧，却仍保留了大号发动机的动力密度，这时气门会承受更大的热量。
As engines get smaller, yet maintain the power density of a larger engine, the valves in them tend to take a greater beating.
因而具有较强的发动机气门摇臂机构总成及其它金属制品的开发、生产能力。
Therefore, we are comparatively strong in development and production of motor valve rocker framework assembly and other metal products.
有内胎式轮胎气门是直接做在内胎上的，无内胎式轮胎的气门安装在轮毂上。
On the tire with an inner tube, the valve is mounted on the tube. On the tubeless tire, the valve is mounted on the wheel rim.
缸盖上装有气门、气门弹簧和摇臂轴上的摇臂，推杆推动这部分气门传动机构工作。
The cylinder head carries the valves, valve springs and the rockers on the rocker shaft, this part of the valve gear being worked by push-rods.
而且气门头部容易被经过的高温气体烧蚀，活塞顶部也可能会碰到气门使发动机严重损坏。
Also the valve heads will be liable to be burnt by the passing hot gases, and there is the likelihood of the piston crown touching an open valve, which can seriously damage the engine.
而且气门头部容易被经过的高温气体烧蚀，活塞顶部也可能会碰到气门使发动机严重损坏。
Also the valve heads will be liable to be burnt by the passing hot gases, and there is the likelihood of the piston crown touching an open valve, which can seriously damage the engine.
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