The difficult-to-describe flow of gas, with its large deviations from plug flow and the bypassing of solids by bubbles, represents an inefficient contacting system . 气体流动状态难以描述,与活塞流离较大,由于气泡产生而使固体颗粒发生沟流,这些都表示接触效率降低。
Same world - class proactive contact system 相同的世界级主动联络系统!
A new idea of research on contact system of automobile relay 汽车继电器触头系统研究新思路
Mechanical property of contact system between roller and roller axle 回转窑托轮和托轮轴接触体系的力学特征
Test methods of fittings for overhead contact system in electrification railway 电气化铁道接触网零部件试验方法