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.
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.
这个“二人组”就成了已知最古老的化石证据，来支持无气门亚目一类螨虫的搭便车现象，或称寄载现象。
That makes the duo the oldest known fossil evidence of hitch-hiking behavior, or phoresy, in a large group of mites called the Astigmata.
“我们现在拥有了一种高集成的中空充钠气门生产工艺，”Schaefer说，“钻孔填钠密封，一步就可以搞定。”
"We now have a high volume process for manufacturing sodium fill valves," said Schaefer. "We drill the holes, fill them with sodium and seal them all in one step."
丰田公司曾在他们自己的报告中称“在对4000多辆汽车的实地检查中，没有发现一例因为电子节气门故障而产生失控加速现象。”
Toyota said its own findings show that after "more than 4, 000 on-site vehicle inspections, in no case have we found electronic throttle controls to be a cause of unintended acceleration."
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。
本文介绍了电子节气门的结构和特点。
The structure and characteristic of electronic throttle is introduced.
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.
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.
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.
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.
最先进的轮胎充气及更换气门芯工具，获国家专利。
Patented product, which is the most advanced and popular tool used for fast inflation and replacing valve core of the inside wheel.
气门摇臂，摇臂轴，摇臂总成，气门导管，凸轮轴盖。
Rocker arm, Rocker arm shaft, Rocker assembly, Valve guide tube, Camshaft bearing Cap.
向下的运动使气门向下移动离开气门座，气门被打开。
This downward movement forces the valve to move downward off its seat so that it opens.
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.
由气门加速度积分和气门升程微分得到两路气门速度信号。
Two kinds of valve velocity data were got from valve acceleration integral and displacement differential.
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 .
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.
着重介绍了本田公司的可变气门驱动机构VTEC的结构和工作原理。
It also introduces the VTEC structure and operating principles of the variable valve actuation adopted by Honda company.
对影响气缸盖气门座圈和气门导管孔的加工精度的诸多因素进行分析。
Analyzing the many factors of affecting the processing precision of valve seat ring and valve stem guide hole of cylinder head.
汽车发动机气门间隙调整是汽车使用和维修中经常进行的一项重要作业。
It is an important work in automobile service and repair to adjust the valve clearance of engine.
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