叶片轴的英文：
runner blade trunnion ;stem bearing of guide vane

runner是什么意思：
n. 跑步者；赛马；走私者；送信人；长条地毯；滑板；推销员

runner inhibitor
纤匐枝抑制剂

a smuggler; a runner
走私者

A runner needs good wind.
赛跑者要有良好的呼吸力。

blade是什么意思：
n. 叶片；桨叶；刀片；剑

blade maintainer
单刃养路机

The cutting blade of a plow;a share.
犁刃，犁头犁上切割用的刃；铧头

The blade needs sharpening.
这刀需要磨一磨。

trunnion是什么意思：
n. 炮耳,空枢,耳轴

Pressure-compensated air bearings are used on both ends of the trunnion axis
耳轴两端各用一压力补偿空气轴承。

When the two shafts are at an angle to each other, the bearings in the yokes permit the yokes to swing around on the trunnions with each revolution.
当两轴相互处在同一角度上，主动轴转动时万向节叉上的轴承使万向节叉绕万向节十字轴摆动。

The trunnion assembly is supported by air bearings at the end of each arm and is held in position by brake shoes at each bearings
耳轴组件的支承是每根臂末端的空气轴承，轴承上的闸瓦起定位作用。