查询词典 foot bellows

Includes aluminum breakdown oars, bellows foot pump and carry bag.

包括铝细目桨，波纹管足泵和行李。

United States Foot valve main products are: butterfly valve, ball valve, globe valve, gate valve, check valve, regulating valve, pressure reducing valve, flame arrester, needle valves, control valves, discharge valve, breathing valves, mud valves, exhaust valves, filters, bottom valves, diaphragm valves, plug valves, plunger valves, thermal valves, water control valve, balance valve, trap, solenoid valve, safety valve, electric valves, pneumatic valves, power station valve, oilfield valves, forged steel valve, stainless steel valves, ceramic valves, anti-corrosion valves, bellows valves, ammonia valves used, food-specific valve, sanitary valves and other industrial-class on a common valve.

美国富特阀门主要产品有：蝶阀、球阀、截止阀、闸阀、止回阀、调节阀、减压阀、阻火器、针型阀、控制阀、放料阀、呼吸阀、排泥阀、排气阀、过滤器、底阀、隔膜阀、旋塞阀、柱塞阀、保温阀门、水利控制阀、平衡阀、疏水阀、电磁阀、安全阀、电动阀门、气动阀门、电站阀门、油田阀门、锻钢阀门、不锈钢阀门、陶瓷阀门、防腐阀门、波纹管阀门、氨用阀门、食品专用阀、卫生级阀门等工业上通用阀门。

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。