着重讨论了农用动力机的排气对大气的污染。
In this paper atmospheric pollution created by agricultural diesel engines is discussed.
一般动力机大都借助于联轴器与工作机相联接。
Most of the general power machine by means of coupling machine connected with work.
和水车一样，风车是最早代替人力的动力机之一。
Like waterwheels, windmills were among the original prime movers that replaced human Beings as a source of power.
而传统用于向船舶电力系统供电的辅助动力机随之被关闭。
The vessels then shut down auxiliary engines that have historically powered shipboard electrical systems.
适用于汽车、拖拉机及其它各种动力机械加注黄油作业。
Apply to automobiles, tractors and other power machinery operations butter added.
气雾两相流的相间重量比对动力机的运转性能起重要作用。
The weight ratio between phases of two-phase flow has an important influence on the operational properties of power engine.
例如在往复活塞式动力机械和压缩机中，用连杆来连接活塞与曲柄。
For example, in reciprocating piston compressor and power machinery, to connect the piston with connecting rod and crank.
动力机与压缩机的分离为动力机的热效率和升功率的提高提供了有效途径。
The separation of power machine and compressor gives a available way of improving calorific efficiency and performance per litre.
双活塞式液压自由活塞发动机是将内燃机与液压泵集成为一体的新型动力机械。
The objective of the study is to analyze one particular engine, the dual hydraulic free piston engine-DHFPE.
切割刀具和动力机从机架上拆下后单独使用，还是割草、修剪花卉的理想工具。
The cutter and the power machine can be used independently after disassembled from the machine frame, which are also ideal tools for mowing and flower trimming.
内燃机作为二十世纪最广泛应用的动力机械，在新世纪中仍然具有不可替代的作用。
Internal combustion engine as most popular power machinery still has an affect in a new era.
这种方法的提出对内燃机等往复动力机械故障诊断具有重要的理论意义和现实应用价值。
This method has important academic meaning and value of practical application on fault diagnosis in to-and -fro dynamical machine.
泥浆脉冲信号在传输过程中主要受钻探泵、井底动力机、泥浆中的气泡及活动钻具的干扰；
In the course of transmission, mud pulse signal mainly disturbed by drilling pump, engine in the bottom hole, air bladder contained in mud and movement of drilling equipment.
虽然波音公司去年进行了燃料电池动力机的试行，但飞机是在电瓶驱动的电动机的帮助下升空的。
Although Boeing made fuel cell flight trials last year, the aircraft took to the air with help from a battery-electric motor.
结构设计主要内容包括各部分能量损失的计算、风扇的设计和动力机的选型、结构和能量的校核等。
Its major structural design composes the calculation of various parts' energy loss, the design of fan, type selection of engine, verification of structure and energy, and so forth.
结构设计主要内容包括各部分能量损失的计算、风扇的设计和动力机的选型、结构和能量的校核等。
The structural design of the main features of the various parts of the calculation of energy loss, fans of the design and selection of power machine, structure and energy, such as the check.
在蒸汽机、蒸汽动力机车、电锯和伐木归堆机等工具问世之前，伐木工人依靠斧头、手锯和驮畜进行作业。
Loggers relied on axes, handsaws and draft animals before the advent of steam engines and gas-powered vehicles, along with chainsaws and harvesting machines such as the feller-buncher.
动力机由支 架上的滚轮支撑于微型割晒机机架的导轨上，动力机的移动带着切 割刀具沿导轨作横向切割；
The power machine is supported on a guide rail of the minisize windrower frame by rollers; and the movement of the power machine drives the cutter to move transversally along the guide rail;
压缩机组作为气举采油的动力源，其气量直接影响气举采油的规模，而动力机的选择也将直接影响整个气举系统的经济效益；
The gas-lift pumping plant is the power source, the gas volume has a direct effect on the scale of gas lift and the selection of power motor will directly affect the cost of gas-lift system.
一般动力机大都借助于联轴器与工作机相联接，是机械产品轴系传动最常用的联接部件，双膜片联轴器东光县万达最专业预约电话： 。
Most of the general power machine and working machine by means of coupling to link the drive shaft is the most commonly used mechanical products join components.
一般动力机大都借助于联轴器与工作机相联接，是机械产品轴系传动最常用的联接部件，双膜片联轴器东光县万达最专业预约电话： 。
Most of the general power machine and working machine by means of coupling to link the drive shaft is the most commonly used mechanical products join components.
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