连接管的流阻造成吸气压力的下降，对工质密度产生严重影响；系统中残留的冷冻油，阻碍制冷剂的蒸发。

The drop of suction pressure which is caused by flowing obstruct of linked tube leads to serious influence to refrigerant density.

youdao

组合式船用液压油储存装置，包括储油箱、油滤器、截止阀、手摇泵、连接管。

A modular Marine hydraulic oil storage device comprises a storage tank, an oil filter, a cut-off valve, a hand pump and connecting pipes.

youdao

组合式船用液压油储存装置，包括储油箱、油滤器、截止阀、手摇泵、连接管。

A modular Marine hydraulic oil storage device comprises a storage tank, an oil filter, a cut-off valve, a hand pump and connecting pipes.

youdao