| 1. | Comprising a hollow metal - ball with orifices . the ball is joined to piston and cylinder . press the piston , water jets out of the orifices in all directions
由一个空心有孔金属球和活塞筒组成。压下活塞可以看到水嘴的水向四面八方喷射。 |
| 2. | Fresh off of the league imposed mandatory one game suspension for excessive technical fouls , he would not allow the pistons to lose this game
上一场比赛刚刚由于技术犯规超标（过16次后，每两次就要停赛一场）缺席，今天，他可不想在自己在场的情况下活塞输掉这场比赛。 |
| 3. | In this paper the random theory has been applied to the study on the piston random thermal shock and also the special law of the temperature field and stress field has been got under the thermal shock condition
最后，将随机理论应用于活塞随机热冲击的研究，获得在随机热冲击条件下活塞温度场和应力场的特殊规律。 |
| 4. | In chapter 3 , it systematically analyzes the bi - dimensioned instantaneous temperature range state of piston , cylinder liner and piston rings when diesel engine type 4135 is considered under the normal friction heat
第3章系统地分析了4135柴油机在考虑摩擦热的正常工况下活塞、缸套和活塞环各部分二维瞬态温度的分布和状态。 |
| 5. | The thermal state of the piston has been studied under the thermal shock in the first time . the lumped parameter system of the temperature has been established under the triangle rectangle and instantaneous impact . and the simulation results also have been got
首次建立了活塞在受到矩形波、三角形波、瞬态冲击等热激励时的温度变化的集总参数模型，进而获得了在上述热冲击下活塞温度的解析解及稳态解。 |
| 6. | This paper has investigated the mechanism of the stress and deflection that the piston withstands the gas pressure and temperature load . the result reveals that the thermal stress is prominent in the piston head , and the mechanical stress is prominent in the skirt of piston
研究了活塞在燃气爆发压力和温度载荷共同作用下活塞的应力和变形机理，并进行了数值模拟，结果表明活塞在顶部以热应力为主，在裙部以机械应力为主。 |
| 7. | Considering the probability of the collision of the valve and the piston of the engine , to obtain the adjust ability of valve timing of the haecvvs in different speeds , the moving of the valve and the piston have been simulated . some strategies to avoid the collision have been put forward . the temperature of solenoid coil rose sharply both in low engine speed and in high engine speed
根据发动机活塞的运动规律及电控可变气门系统的启、闭特性，对不同转速下活塞与气门的相对位置进行仿真，以保证气门不与活塞发生碰撞为约束条件，对气门正时调节能力随转速的变化规律进行了研究，在此基础上讨论了气门与发动机活塞避免碰撞的方案。 |
| 8. | Meanwhile the 0 dimension 1 dimension plane wall 2 dimension models are established . using the mathematic and ansys software the numerical and soluble analyses can be got for the thermal shock model of the piston . compare the simulation results to the test results the temperature field and stress field can be got which are quite close the thermal shock situation
同时建立活塞热冲击的集总参数、 1维平壁和2维模型，应用mathematic软件和ansys软件，对所建立的活塞热冲击模型进行了解析和数值分析，利用模拟计算与试验结果相结合的方法，获得接近于内燃机活塞热冲击的温度场与热应力场分布，从而更加全面深入地了解在热冲击条件下活塞的温度场和应力场变化规律。 |
