1.
hydraulicefficiency ram

液力压头液压缸柱塞
2.
resistance head

阻力压头(用压头表示的阻力损失)
3.
mine static head

矿井通风系统静压头
4.
pump suction head

泵吸收压头, 泵吸收高度
5.
near balanced hydrostatic head

接近平衡的静水压头
6.
loss of head due to entrance

管进口段的压头损失
7.
loss of head due to pipe fitting

管道配件的压头损失
8.
head of fluid frictinal loss

流体摩擦阻力损失压头
9.
off-set die head

直角机头(压出机)
10.
pressed-steel hook chain

模压钢钩头链, 冲压钩头链
11.
external pressure single type axial expansion joint

外压单式轴向伸缩接头
12.
contactor electric for a voltage exceeding 1000v

电路接头超过1000v电压用
13.
tension-control cylinder

控制钻头给进的液压缸
14.
hydraulic travelling head cutting machine

液压移动头式裁切机
15.
Professional Modular Crimps, Strips & Cuts Tools

专业水晶头压剥剪工具
16.
easing the bit in

钻头轻压慢转钻进地层
17.
manometer-thermometer sonde

压力计-温度计探头
18.
curve tube pressure balance expansion joint

曲管压力平衡伸缩接头