您要查找的是不是：
- 并列式双腔气制动阀Parallel dual-chamber air brake valve
- 串列式双腔气制动阀Series dual -chamber air brake valve
- 气制动阀Pneumatic brake valve
- 死腔气Dead space air
- 膜片式气制动阀静动特性STATIC AND DYNAMIC CHARACTERISTICS OF THE DIAGRAPH PNEUMATIC BRAKE VALVE
- 死腔气容量Dead space gas volume
- 体双腔吸虫Lancet fluke
- 活塞式气制动阀静动特性的研究Study on the static and dynamic characteristics of the piston pneumatic brake valve
- 半双工semiduplex
- 膜片弹簧式气制动阀静特性的研究Study on the static characteristics of the diagraph pneumatic brake valve
- 内腔lumen
- 双拼Two bors d's oeuveres
- 双元音diphthong
- 肠腔气柱渐高征progressive heightening gascolumns sign
- 制动阀brake valve
- 母亲给她买了一双网球鞋。Mother bought her a pair of tennis shoes.
- 比翼双飞fly wing to wing
- 模腔mold form
- 补气air supply
- 她一双眼睛闪烁着喜悦的光芒。Her eyes twinkled with delight.
