1) pressure ratio
压比
1.
Simulation and analysis of influence of pressure ratio on regenerator performance;
压比对回热器性能影响的理论分析
2.
The effects on pressure ratio of different shape resonators under the same input conditions were studied with Fluent6.
通过采用Fluent模拟计算的方法研究了在相同输入的情况下,不同谐振管形状对系统压比的影响。
3.
The aim is to study the influence of the rotational speed and pressure ratio on some parameters of two counter-rotating rotors,which include exit velocity,flow angle and diffusion factor.
以自行设计的双排轴流对转压气机为研究对象,采用流线曲率法对对转压气机的气动性能及流场结构进行了探索性研究,着重分析了转速调节分别对两排转子出口速度、出气角以及扩散因子的影响,结果表明:两排转子的转速互相依赖,在量级上不宜相差的过大,否则流场极易发生分离或畸变;另外,可通过适当调整各排转子的压比来平衡两转子的加功量,以降低流场畸变的可能性,以上研究结论对对转压气机的设计与应用有着重要的理论意义和工程应用价值。
2) voltage ratio
压比
1.
The present ZnO varistor have the shortcomings of high residual voltage,high voltage ratio(about 1.
现生产的ZnO电阻片存在残压高,压比(1。
3) pressure
[英]['preʃə(r)] [美]['prɛʃɚ]
比压
1.
At proper pouring temperature and mold temperature,the effect of die casting speed and pressure on microstructure and properties of AM60B alloy has been studied.
固定浇注温度和铸型温度,研究压射速度和压射比压对压铸AM60B合金组织与性能的影响。
2.
The effect of difference of mechanical properties in different parts of a casting by pressure is compared.
研究了挤压铸造比压对大高径比(M=7)ZA27合金杯形铸件组织与不同部位性能的影响。
4) specific pressure
比压
1.
Influence of Specific Pressure Value in Squeeze Casting on Properties of Cu Alloy Valve Body;
挤压铸造比压对铜合金阀体性能的影响
2.
The microstructure of the liquid forging pieces under various specific pressures and preheating temperature conditions for the die were comparatively analyzed.
叙述了选用ZA27合金采用液态模锻工艺生产耐磨衬板的研究,确定了模具材料的选择及其热处理工艺,对不同比压及不同模具预热温度条件下液锻件的微观组织进行了对比分析。
3.
The research on microstructure pattern and mechanical properties of the circular ring parts by liquid forging experiment under different specific pressures and casting temperatures were stated.
通过圆环零件的液态模锻成形实验,对在不同比压和浇铸温度条件下,锻件的微观组织形貌和力学性能进行了分析研究。
5) pressure ratio
压比，增压比
6) injection pressure
压射比压
1.
The influence of injection pressure?pouring temperature and mold temperature on the microstructure, casting character and properties of ZA85 magnesium alloy has been carried out, the best die casting process was obtained under cold chamber, also analyse its cast structure simply, and small batches of magnesium alloy automobile parts are produced successfully.
研究了压射比压、浇注温度、模具温度三个压铸工艺参数对ZA85镁合金显微组织、铸造性能和力学性能的影响,探明了其在冷室压铸条件下的最佳工艺,简单分析了压铸态组织,并成功的实现了镁合金汽车零件的试制。
2.
The paper presents some of the results obtained from an investigation on the influence of injection pressure,pouring temperature,mold temperature and shot speed on the microstructure,castability and mechanical properties of AM60B magnesium alloy under the condition of cold chamber.
研究了压射比压、浇注温度、模具温度、压射速度四个压铸参数对AM60B镁合金显微组织、铸造性能和力学性能的影响,探明了其在冷室压铸条件下的最佳工艺,简单分析了压铸态组织,并成功地实现了镁合金灯罩铸件的试制。
补充资料：氢同位素分子蒸气压比
分子式：
CAS号：
性质：D2和H2分子在零点能和电离能上有较大差别，D2的范德华引力比H2大，饱和蒸气压是H2>HD>D2，相平衡时的分离系数大于1，产生正同位素效应，有较大的负温度系数。20.0K时H2/HD蒸气压比为1.73，H2/D2为3.07。利用氢同位素蒸气压的同位素效应大的特点，使液氢精馏成为工业上生产氘的主要方法之一。
CAS号：
性质：D2和H2分子在零点能和电离能上有较大差别，D2的范德华引力比H2大，饱和蒸气压是H2>HD>D2，相平衡时的分离系数大于1，产生正同位素效应，有较大的负温度系数。20.0K时H2/HD蒸气压比为1.73，H2/D2为3.07。利用氢同位素蒸气压的同位素效应大的特点，使液氢精馏成为工业上生产氘的主要方法之一。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条