您要查找的是不是：
- 阀valve
- 电磁阀solenoid pilot actuated valve
- 在地上on the ground
- 地上overground
- 闸阀gate(brake; shutoff; shut-off) valve
- 地上的overground
- 球阀ball plug
- 截止阀disconnecting valve
- 地上消火栓post fire hydrant
- 阀值threshold values
- 放在地上ground(ing)
- 单向阀holding valve
- 阀芯case
- 他从树上咚地一声摔在了地上。He fell out of the tree and landed on the ground with a thud.
- 阀体valve body
- 地上式消火栓above hydrant
- 溢流阀spillover valve
- 一个杯子掉到地上。A cup fell down to the ground.
- 换向阀reversing valve
- 她被击昏倒在地上。She was stunned and sank to the ground.
