Discusses the feature of balance valves, considers that balance valves should be used in place of the orifice, gate valves and stop valves in order to improve regulating function of liquid pipe.
分析了平衡阀的特点，认为为改善液体管路系统的调节功能，用平衡阀取代截流孔板、闸阀及截止阀势在必行。
2
The mobility test part comprises a sprue gate, a melting liquid cavity and an exhaust hole.
流动性试验部件包括浇注口、熔液腔和排气孔。
3
The liquid crystal display device is provided. The liquid crystal display device includes a gate line and a data line formed on a substrate;