Another reason for banning lead in gasoline is that the lead can ruin the catalytic converter . 禁止汽油里含铅的另一个原因，是铅能损坏催化式排气净化器。
This device, called the manifold heat-control valve, is built into the exhaust and intake manifold . 这种装置称为“歧管热控制阀”，它拼装在排气与进气歧管中。
The greater the exhaust velocity is, the faster the rocket travels as it smashes through the atmosphere . 排气速度越大，火箭在冲出大气层时的飞行速度也就越快。
Four nozzles, canted outboard, split the exhaust of the solid rocket motor into four equal tails . 四个向外倾斜的喷管把固体火箭发动机的排气流分成四个相等的尾巴。
In 1970, american motors was granted special permission to purchase emission control technology from gm . 1970年，美国汽车公司获得许可从通用汽车公司那里购买控制排气的技术。
The two chief problems in installing the sliprings in the bullet seemed to be the temperature problem and the drive problem . 把滑环装在排气锥体中的两个主要问题是温度和传动。
A variety of mechanical surfaces have been employed for deflecting the exhaust jets of solid-propellant rockets . 人们已经用过各种类型的机械控制面来偏转固体推进剂火箭的排气流。
Another early approach to controlling exhaust emissions was the engine modification, or controlled-combustion system . 另一种早期的控制排气污染的途径是发动机调整或控制燃烧系统。
Some technicians use the infrared exhaust analyzer to quickly detect small vapor losses from around fuel tank . 有些技术员利用红外线排气分析仪来迅速检测燃油箱周围的少量的蒸气泄漏。
The four strokes in the four-stroke-cycle engine, in their proper order, are intake, compression, power, and exhaust . 四冲程循环发动机中，四个冲程的固定顺序是：进气、压缩、作功和排气。
