There are two compression rings for the piston group which guarantees good sealing performance and accurate valve timing.
活塞组采用两道压缩环，密封能力强、配气定时准确；
The yield of a natural gas well in an oilfield dropped suddenly, which was due to the piston sheath of the choke valve breaking into three parts with two pairs of fractures after inspection.
某油田一天然气井的产量突然下降，经检查发现该井采气装置中的节流阀柱塞套断裂为三截，形成了两对断口。
In the piston thermal fatigue test, there are two different operational mode: temperature control mode and time control mode.
活塞的热疲劳试验有温度控制和时间控制两种工作模式。
The cycle of operations is spread over four piston strokes. To complete the full cycle it takes two revolutions of the crankshaft.
发动机的一个工作循环分布在活塞的四个行程中，一个完整的工作循环曲轴需要转动两圈。
On these pistons the number piston rings was reduced to three, two compression and one oil-control.
在这些活塞中，活塞环的数量减少到三个，即两个气环，一个油环。
The powerplant of propeller aircraft is composed of two main parts, piston engine and propeller.
小型螺旋桨飞机的动力装置一般由活塞式发动机和螺旋桨两个主要部分组成。
The content of paper includes two parts: the noise analysis of hydraulic axial piston pump and improved design of structure.
设计主要有两个部分的内容：液压轴向柱塞泵的噪声分析和结构的改进。
Main production piston and screw the two series, more than 200 varieties of the compressor.
主要生产活塞式和螺杆式两大系列，两百多个品种的压缩机。
In a HFPE, the free piston assembly is driven back and forth between two outer dead centers by fuel energy, and at the same time hydraulic oil is pumped out for energy.
在左、右动力腔的交替驱动下，HFPE的活塞组件在腔体中作往复直线运动，同时泵出液压油驱动负载工作。
Pneumatic piston actuators can be divided into single and double acting two.
气动活塞式执行机构可分为单作用和双作用两种。
According to the fracture surfaces, it is found that the fracture mode of the two parts is overload fracture and there is obvious stress concentration in the floating piston.
但从现有的断口看，二者均呈大应力过载断裂且浮动活塞明显受力不均。
This paper develops a dynamic pressure test system for ZTY265 natural gas compressor which is a two step piston type compressor and driven by two stroke internal combustion engines.
ZTY2 65天然气压缩机是以二冲程发动机作为动力源的二级活塞式压缩机，针对此压缩机，本文作者研制了ZTY 2 65天然气压缩机动态压力测试系统。
When it works, the piston rotates all the time, and runs a circle to automatically complete two pressure circulations of charging and exhausting without air distributing mechanism.
该空压机在运行时活塞始终在旋转，且运行一周，自动完成进、排气两个压力循环，无须进、排气阀门等配气机构。
A spark discharge between two electrodes produces an "ionised gas tube" in the xenon gas-filled lamp piston through which electric current flows which in turn causes the gas to light up.
在充满氙气的灯柱中的两个电极之间进行火花放电将产生“电离气体管”，电流通过该管流动，从而导致气体发光。
Upper and lower piston rings are arranged inside a piston gaseous ring groove, and openings on the two-piece piston rings are mutually staggered.
在一个活塞气环槽内设有上下二片活塞环，二片活塞环上的开口相互错开。
Compared with the reciprocating compressors with the structure of traditional crankshaft, it adopts a CAM with two repose Angle segment to drive the piston.
与传统曲轴连杆结构压缩机不同的是，它采用带两个休止角段的凸轮驱动活塞，活塞的加速度选择为正弦加速度。
In the two-cycle engine, the piston ACTS as a valve, clearing valve ports in the cylinder wall as it nears BDC.
在二行程发动机中，活塞起到阀门的作用，当活塞接近下止点时，使气缸壁上的进排气口打开。
Separately Mixed two different property molybdenum powder with the same nickel-chromium-boron-silicon alloy, then carried out plasma spray piston ring experiments.
试验用两种性能不同的钼粉与同一种镍基合金粉混合，进行了工业等离子喷涂活塞环对比试验。
Working principle of two kinds of hydraulic clamping devices, which based on rod-less piston, is introduced, and the mechanics calculation formulas were also given.
介绍了两种基于无杆活塞的液压夹具，分析了其工作原理，给出了相应的计算公式。
The piston rings carried in the ring groove are of two basic types: compression rings and oil-control ring.
安装在环槽中的活塞环有两种类型：压缩环和机油环。
Travel mechanism of each track consists of a variable two-speed piston motor, a planetary reducer and a parking brake, travel brake buffer valve is mounted on motor to reduce hydraulic shock.
每侧履带的行走机构由一个变量双速柱塞马达、行星减速器和制动器组成，行走制动缓冲阀与马达一体安装，吸收了行车时由于制动或载荷变化带来的液压冲击。
Solid-liquid coupling virtual prototype of axial piston pump was put up based on the interface of the two models.
利用二者模型的底层接口，搭建了液固耦合的轴向柱塞泵虚拟样机模型。
The working principle of a new kind of double-acting hand piston pump having two-step output pressure was introduced. The displacement and the output pressure calculating formulae were given.
介绍了一种新型手动双作用双级柱塞泵的工作原理，给出了其排量与输出压力的计算公式。
The paper introduces the development of the precise metering pump with two \ | way piston for sampling flue gases, its characteristic and applications.
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.
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。
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