采用弹簧活塞式发射装置，狙击步枪射击时几乎无声。
Featuring a spring piston firing mechanism, the sniper rifle is almost silent when fired.
主要用于活塞式航空发动机。
进口油用减压阀属于先导活塞式减压阀。
现以活塞式为例来说明往复泵工作原理。
Now to an example to illustrate the reciprocating piston pump works.
航空汽油用于活塞式航空发动机，使用量较少。
Aviation benzine is used at piston aviation engine, use quantity is less.
一台活塞式发动机被充其量说只成为有效率33%。
其次，针对摆动活塞式发动机的总体结构进行设计。
Next, in view of swings the piston engine overall structure to carry on the design.
单螺杆压缩机是继活塞式压缩机之后的新一代压缩机。
Single screw compressor is a new compressor after piston type compressor.
孔隙中水主要是以活塞式驱油为主，非活塞式驱油少见；
Piston-like displacement is the main mechanism of water displacing oil in pore-throats.
介绍了活塞式压缩机示功图计算机测试系统的构成和工作原理。
This article introduces the composing and principle of computerized reciprocating compressor indicator card testing system.
两种主要的空压机类型为往复式(活塞式)和旋转式(螺杆式)。
Of the two main air compressor types for reciprocating (piston) and rotary (screw).
文章介绍了双向活塞式精密气体采样计量泵的研制及其特性和应用。
The paper introduces the development of the precise metering pump with two \ | way piston for sampling flue gases, its characteristic and applications.
给出了活塞式换能器的电声效率、压电元件能量耗散值D的计算结果。
Examples of electricity-sound efficiency of piston transducer and energy dissipation per unit vibration energy D ate given.
它由气动活塞式执行机构和O型球阀组成，阀芯采用圆柱形通孔球体。
It consists of pneumatic piston actuator and the composition of O-type ball valve, valve core sphere using cylindrical hole.
气动执行机构采用活塞式气缸及曲臂转换结构，输出力矩大，体积精小。
The use of pneumatic actuator cylinder piston and crank conversion structure, output torque, small size fine.
半封闭活塞式和螺杆式冷水机组以其各自鲜明的特点得到了广泛的应用。
The screw type and reciprocal type chillers each has notable characteristic so both have gained widespread applications.
因此，它具有电动执行机构的快速响应性和活塞式执行机构的推力大等优点。
Therefore, it has a fast response electric actuator and the executing agency of the thrust piston big and so on.
在此基础上，介绍了我国重力活塞式天然气水合物保真采样器的研究进展。
The development of the gas hydrate pressured corer in China is also introduced.
动力装置为蒸汽汽轮机，而不是传统的蒸汽活塞式发动机，最大速度为21节。
Powered by steam turbines instead of the steam pistons then common, it sailed at a record top speed of 21 knots.
提出了活塞式灌浆泵存在的问题，论述了活塞式灌浆泵技术改造方案的可行性。
Problems of raise the piston grouting pump, feasible of discusses the piston grouting pump technology transformation scheme.
近海油田平台电站主发电机组主要是活塞式燃气发电机组和燃气轮机发电机组。
The main power generator groups in platform power stations are basically piston natural gas generator group and gas turbine generator group.
介绍了活塞式压缩机可调回流气阀的调节原理、方法和调节机构及其实验结果。
The paper tells of the regulating principle, method, framework and experimental results of the regulating backflow valve for reciprocal compressor.
航模、无人驾驶侦察机和靶机等飞行器经常采用带螺旋桨的活塞式小型动力装置。
Minitype power unit with diesel and propeller is widely used in aviation model, unmanned scout and target drone.
介绍了作者自行设计的带冷凝器新型弹簧活塞式压力自平衡装置结构及其工作原理。
The structure and working mechanism on the new type of spring-piston pressure auto-balancing device with condenser was introduced.
研究结果表明，传统的估算方法对于装小型活塞式发动机的螺旋桨飞机也是适用的。
The result shows that the traditional estimation methods about powerplant performance are adapted for propeller aircraft even if with small sized piston engine and propeller.
往复活塞式发动机曲轴扭振吸振器是应用得最早且最普通的一类阻尼式动力吸振器。
The torsional vibration absorbers of reciprocating piston engine crankshafts are the earliest and most commonly used kind of damped dynamic vibration absorbers.
本文论述模拟制冷活塞式压缩机工作过程的数学模型及其在计算机上的数值解方法。
This paper expounds the mathematical model which simulates the working process of refrigerating compressors and its digital algorithms by means of a computer.
凸轮活塞式发动机的核心部件为双面空间圆柱凸轮，其轮廓曲线将影响发动机的工作性能。
The core part of the piston CAM engine is the spatial cylindrical CAM with dual surfaces, whose profile affects the overall engine performance.
为保证往复活塞式压缩机的运行可靠性和经济性，必须通过冷却系统对其进行良好的冷却。
Reciprocation compressor must be well cooled by cooling system in order to ensure its reliability and economy in the course of running.
在进行活塞式压缩机设计时，关于曲轴平衡块的设计计算大多采用试算法，计算量比较大。
The tentative calculational methods is used in the design of crank shaft balancer, the workload of which is very large.
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