查询词典 shock-wave noise

My company is bell south Nanchang Chemical Industry Ltd. unit (formerly JMC Chemical Industry Co., Ltd.) Our main products are: 1, vehicle vibration damping pad and insulation film series, mainly used in cars, driving from alternate space hot, noise, the role of shock absorber; 2, metal coating pre-treatment agent series, including series in addition to oil, rust agent, phosphating agent; 3, automobile radiator coolant advanced series, for the liquid cooling type internal combustion engine cooling system, from antifreeze, anti-boil, corrosion resistance, the usefulness of scale; 4, the company has other products: paint remover, anti-rust oil, cutting coolant, PVC sealant, aluminum chemical conversion agent, paint mist coagulant , waste water treatment agent. 5, ethylene glycol, such as the sale of chemical raw materials, cheap, quality assurance.

我公司是南昌南铃化学工业有限公司下属单位（原江铃化学工业有限公司）公司主要产品有：1、汽车用阻尼隔热垫和减振胶片系列，主要用于汽车、驾乘空间起隔热、隔音、减震的作用；2、金属涂装前处理剂系列，包括系列除油剂、除锈剂、磷化剂等；3、汽车用高级水箱冷却液系列，用于液冷式内燃机冷却系统，起防冻、防沸、抗蚀、阻垢的功用；4、公司其它产品有：脱漆剂、防锈油、切削冷却液、PVC密封胶，铝材化学转换剂，漆雾凝聚剂，废水处理剂等。5、公司出售乙二醇等化工原料，价格便宜，质量保证。

It turns out that the flow and noise characteristics are quite complex and different from those of incompressible jets due to existence of quasi-periodic shock cell structures.

超声速射流是一般工业和军事工业中得到广泛应用的重要流动现象，对其流动特性和声学特性的研究，在实际应用和学术研究上有重要的理论价值和实际意义。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。