1·A naval ship electric propulsion unit is a complex ship-machine-electricity system.
舰船电力推进是一个复杂的船—机—电系统。
2·Vehicle drive system, vehicle propulsion unit, method and control program for operating a vehicle drive system.
车辆传动系统，车辆传动单元，使车辆传动系统运行的方法及控制程序。
3·A planetary gearbox for a Marine propulsion unit or an earth moving unit, comprises a hollow wheel gear 1, two or more planet gears 2, and a sun gear 3.
一种用于船舶动力装置或土方运输装置的行星齿轮箱，其包括空心齿轮1、两个或更多行星齿轮2以及太阳齿轮3。
4·Causes for damage of main parts of Z — type Marine propulsion unit are introduced in this pa - per. it also gives the making of plan. design principle and repair methods.
介绍船用Z型推进装置主要零备件的损坏原因以及在进行零备件国产化过程中的方案制定、设计原则和修理方法。
5·Underwater elastomeric energy storage propulsion unit (UEESPU) is a kind of new propulsion unit, which dramatically features as follows: simple structure, low cost, in particular, low noise.
水下弹性储能推进装置是一种新颖的推进装置，具有结构简单、成本低、噪声很小等显著优点，非常适合装备我国的船舶。
6·The EMS low-speed maglev train usually adopts the modular magnetic bogie structure, and the module is the basic unit with the functions of suspension, guidance and propulsion.
EMS型低速磁浮列车通常采用模块化的转向架结构，模块是集悬浮、导向和牵引功能于一身的基本功能单元。
7·Once you are on the surface, the main unit for propulsion are your arms, so it is very important that your draw the right pattern underwater, and that is a hourglass pattern.
身体浮到水面后，最大的推进力量就来自手臂。因此正确的水下划水路线非常重要，也就是沙漏状划水。