Principal Components（主要部件） Engine（發(fā)動機） The engine acts as the power unit. The internal combustion engine is most common: this obtains its power by burning a liquid fuel inside the engine cylinder. There are two types of engine :gasoline(also called a spark-ignition engine) and diesel(also called a compression-ignition engine).Both engines are called heat engines; the burning fuel generates heat which causes the gas inside the cylinder to increase its pressure and supply power to rotate a shaft connected to the transmission.
發(fā)動機充當動力裝置。內(nèi)燃機是最常見的：它通過在發(fā)動機汽缸里面燃燒一種液體燃料獲得動力。發(fā)動機有兩種類型:汽油機 (也叫做一個火花- 點火發(fā)動機)和柴油機(也被稱為一個壓縮- 點火發(fā)動機)。這兩種發(fā)動機都叫做熱機；燃料在氣缸內(nèi)燃燒產(chǎn)生的高溫高壓氣體推動曲軸旋轉(zhuǎn)而傳遞動力。
Body（車身） An automobile body is a sheet metal shell with windows, doors, a hood, and a trunk deck built into it. It provides a protective covering for the engine, passengers, and cargo. The body is designed to keep passengers safe and comfortable. The body styling provides an attractive, colorful, modern appearance for the vehicle.
汽車車身是由窗子，門，一個發(fā)動機罩和一個行李艙蓋建成的一個金屬板殼。它給發(fā)動機，乘客和貨物提供一種保護。車身的設(shè)計應(yīng)使得乘客安全和舒適。車身的外表使得汽車具有吸引人的，五彩繽紛的和現(xiàn)代的外表。
Chassis（底盤） The chassis is an assembly of those systems that are the major operating part of a vehicle. The chassis includes the transmission, suspension, steering, and brake systems.
底盤是汽車上主要操作系統(tǒng)組成的一個總成。底盤包括傳動系，懸掛，轉(zhuǎn)向，以及剎車系統(tǒng)。
Transmission systems ― conveys the drive to the wheels. The main components are clutch, gearbox, driveshaft, final drive, and differential.
傳動系統(tǒng) - 把動力運送到車輪。主要零部件是離合器，變速器，傳動軸，主減速器，和差速器。
Suspension― absorbs the road shocks.
懸掛 - 吸收路面震動。
Steering― controls the direction of the movement. 轉(zhuǎn)向 - 控制運動的方向。 Brake― slows down the vehicle. 剎車 – 使車輛減速。 Electrical Equipment（電氣設(shè)備） The electrical system supplies electricity for the ignition, horn, lights, heater, and starter. The electricity level is maintained by a charging circuit. This circuit consists of the battery, alternator (or generator). The battery stores electricity. The alternator changes the engine's mechanical energy into electrical energy and recharges the battery.
電系統(tǒng)為點火，喇叭，燈光，發(fā)熱器和起動器提供電。通過循環(huán)充電來維持電量。這條電路由電池，交流發(fā)電機(或者發(fā)電機)組成。蓄電池儲存電。交流發(fā)電機把發(fā)動機的機械能換成電能并給電池再充電。
發(fā)動機充當動力裝置。內(nèi)燃機是最常見的：它通過在發(fā)動機汽缸里面燃燒一種液體燃料獲得動力。發(fā)動機有兩種類型:汽油機 (也叫做一個火花- 點火發(fā)動機)和柴油機(也被稱為一個壓縮- 點火發(fā)動機)。這兩種發(fā)動機都叫做熱機；燃料在氣缸內(nèi)燃燒產(chǎn)生的高溫高壓氣體推動曲軸旋轉(zhuǎn)而傳遞動力。
Body（車身） An automobile body is a sheet metal shell with windows, doors, a hood, and a trunk deck built into it. It provides a protective covering for the engine, passengers, and cargo. The body is designed to keep passengers safe and comfortable. The body styling provides an attractive, colorful, modern appearance for the vehicle.
汽車車身是由窗子，門，一個發(fā)動機罩和一個行李艙蓋建成的一個金屬板殼。它給發(fā)動機，乘客和貨物提供一種保護。車身的設(shè)計應(yīng)使得乘客安全和舒適。車身的外表使得汽車具有吸引人的，五彩繽紛的和現(xiàn)代的外表。
Chassis（底盤） The chassis is an assembly of those systems that are the major operating part of a vehicle. The chassis includes the transmission, suspension, steering, and brake systems.
底盤是汽車上主要操作系統(tǒng)組成的一個總成。底盤包括傳動系，懸掛，轉(zhuǎn)向，以及剎車系統(tǒng)。
Transmission systems ― conveys the drive to the wheels. The main components are clutch, gearbox, driveshaft, final drive, and differential.
傳動系統(tǒng) - 把動力運送到車輪。主要零部件是離合器，變速器，傳動軸，主減速器，和差速器。
Suspension― absorbs the road shocks.
懸掛 - 吸收路面震動。
Steering― controls the direction of the movement. 轉(zhuǎn)向 - 控制運動的方向。 Brake― slows down the vehicle. 剎車 – 使車輛減速。 Electrical Equipment（電氣設(shè)備） The electrical system supplies electricity for the ignition, horn, lights, heater, and starter. The electricity level is maintained by a charging circuit. This circuit consists of the battery, alternator (or generator). The battery stores electricity. The alternator changes the engine's mechanical energy into electrical energy and recharges the battery.
電系統(tǒng)為點火，喇叭，燈光，發(fā)熱器和起動器提供電。通過循環(huán)充電來維持電量。這條電路由電池，交流發(fā)電機(或者發(fā)電機)組成。蓄電池儲存電。交流發(fā)電機把發(fā)動機的機械能換成電能并給電池再充電。