1.
"As the piston reaches BDC again, the exhaust valve opens. Now, as the piston moves up on the exhaust stroke, it forces the Burned gases out of the cylinder through the exhaust-valve port."
当活塞再一次到达下止点时,排气门打开。同时,活塞向上移动,把废气经排气门排出气缸。
2.
discharging valve
排出阀排气阀排水阀
3.
The escape or release of vaporous waste material, as from an engine.
排出废气从气缸中排出或逸出
4.
The fumes or gases so released.
（排出的）废气这样排出的烟或气体
5.
The exhaust gas exits through the other exhaust manifold.
废气经另外一个排气歧管排出。
6.
cold start emissions
冷起动时排出的废气
7.
keep from exhaling or expelling.
不让气体发散或排出。
8.
To draw liquid or gaseous contents from; drain.
使流出，使排出从…中抽出液体或气体；排出
9.
relieving gas in the alimentary tract (colic or flatulence or griping).
排出消化道的气体（疝气、气胀或者痉挛）。
10.
The tail exhaust pipe of the motor vehicle emitted poisonous smoke.
机动车的尾部排气管排出有毒的浓烟。
11.
Gaseous excretion takes place by diffusion through the stomata and lenticels.
气体通过气孔或皮孔释放的方式排出。
12.
the act of supplying fresh air and getting rid of foul air.
加进新鲜空气把恶劣的气体排出去。
13.
a device that introduces fresh air or expels foul air.
导入新鲜空气排出污浊空气的装置。
14.
At the same time air is sucked into the inlet to replace the exhausted air.
同时，外面空气由进气口吸入代替被排出的空气。
15.
Comparatively minor amounts of gas will precede oil from an oil source bed and gas accompanies expelling oil;
从油源岩中将有较少量的气先于石油排出，而且气伴随着油排出；
16.
Inducing the expulsion of gas from the stomach and intestines.
引导气体从胃部和肠子里排出的。
17.
A usually audible discharge of intestinal gas.
屁从肠内排出的（通常有声音的）气体
18.
an opening for the escape of gas or air.
一个能使烟空气排出去的口。