The piston effect caused by train traveling in tunnel has significant influence on the air flow in the tunnel.
列车运行时的活塞效应对隧道内空气的流动特性有显著的影响。
It manly analyzes four kinds transmutations of piston effect, temperature effect, expansion effect, helical buckling effect in the system of tubing and packer.
针对油管柱—封隔器系统的活塞、螺弯、温度、鼓胀等四种基本效应进行分析，同时根据现场工艺特点进行了温度场和压力场的研究。
This paper analyses the piston effect problem in dellling shaft sinking method and its detriments. In the meantime, the approaches of solving the problem are proposed by the author.
本文分析了钻井法凿井中所出现的钻井活塞效应问题及带来的危害．提出了解决钻井活塞效应的方向和途径。
Under different Angle lean-state, the initial drawback makes a marked effect on buckling bearing capacity of piston.
活塞在不同倾斜度下，初始缺陷对活塞屈曲承载力的影响较大。
The tracer CAM of piston ring is designed according to the principle and method proposed in this paper and the computer simulation result of this compensation effect is given.
按照上述原理设计了活塞环仿形靠模，并对其补偿效果作了数字仿真。
It was shown that the dynamic effect of the temperature and thermal stress of piston must be considered during thermal shock.
计算结果表明：活塞在热冲击期间表现的温度及热应力的动力学效应是必须加以考虑的。
The effect of elastic coupling on wobble plate piston engine shafting vibration in the underwater craft was discussed principally.
本文主要讨论在某水下航行装置中，弹性联轴节对摆盘式活塞发动机轴系振动的影响。
Metal elastic force ring inside piston rings can add initial elastic force of the non-metallic piston ring to get expectative seal effect.
在活塞环的内侧设置金属的弹力环增加非金属活塞环的预弹力，可到达预期的密封效果。
The arc spraying is a kind of important heat spraying technologies. It can be used to repair the damaged surface of hydraulic cylinder piston, and obtains the better effect.
电弧喷涂是热喷涂的主要技术之一，用于液压缸活塞柱体表面修复，可以得到较好的修复效果。
Based on the theory of hydrostatic bearing, the piston pairs of double-damping effect were presented to improve its anti-chucking ability.
基于静压支承的思想，提出双阻尼效应柱塞副来提高其抗卡紧能力。
This paper analyzes the cause of poor noise-reduction effect of high pressure axial piston pump, and puts forward design criterion and attention points of improving noise-reduction effect.
本文分析了高压轴向柱塞泵降噪效果欠佳的原因，提出了提高降噪效果的设计准则和应注意的问题。
This article believes that clearance space has the most important effect upon the ventilation of the piston compressor, and introduces the method of measuring and adjusting the clearance space.
认为余隙间隙对活塞式压缩机排气量的影响最大，并介绍了余隙间隙的测量及调整方法。
The effect of leakage on the rolling piston compressor Can be validated indirectly through the performance experimentation for variable clearances.
通过变间隙的性能试验来间接验证泄漏对滚动转子式压缩机的影响。
The effect of forming temperature, injection pressure and piston velocity on the filling ability of semi-solid A356 aluminum alloy slurry were investigated.
研究了半固态A356铝合金浆料的成形温度、压射比压和压射冲头速度对半固态A356铝合金流变压铸充填性的影响。
Downward core pulling has a significant effect in improving the quality of auto-piston casting and lowering the energy consumption.
铝活塞下抽芯铸造工艺，在提高铝活塞的铸造质量、节约降耗等方面作用突出。
A new method of balanced cooling permanent mould was described. The effect of balanced cooling on the piston quality is discussed. The key to improve quality is to reinforce the cooling.
提出了活塞铸造中模具均衡冷却的新方法，讨论了均衡冷却对活塞质量的影响，指出合理加强冷却是获取高质量活塞的关键。
It's typical lip seal, which is able to gain good seal effect no matter in piston or piston rod.
U型圈是液压缸中最常用的油封，它是一种典型的唇口密封件，无论用于活塞还是活塞杆都能获得良好的密封效果。
The net effect on the piston of all these small irregular forces must be equal to that of the force of gravity if there is to be equilibrium.
假使两方面保持平衡，那么所有这些小的不规则的力对活塞的有效作用必须与重力相等。
Mud pump Classification mud sub-single-effect and two types of double acting, single acting mud pump piston reciprocating in a cycle of action only to complete a suction drain.
泥浆泵分类泥浆泵分单作用及双作用两种型式﹐单作用式泥浆泵在活塞往复活动的一个循环中仅完成一次吸排水行动。
After the piston rod retracts for a definite distance, the oil return amount of an oil cylinder can automatically reduce to realize speed reduction effect to the oil cylinder.
当活塞杆回缩至一定距离后，油缸的回油量便自动减少，从而实现对油缸的减速作用。
It is indicated that effect of variation of piston-to-cylinder gap, oil temperature and pressure on simulation result is very small;
结果表明，柱塞—柱塞套间隙、机油温度和压力变化对模拟计算结果影响很小；
It is indicated that effect of variation of piston-to-cylinder gap, oil temperature and pressure on simulation result is very small;
结果表明，柱塞—柱塞套间隙、机油温度和压力变化对模拟计算结果影响很小；
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