The M8JR USES Aluminum 7075 center driver shaft to get the job done.

M8JR使用的铝合金7075中心轴驱动器，以完成这项工作。

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In his application Selden described a machine with a gasoline-driven, combustion-type engine that sat in front of the driver; a clutch; a foot brake; a drive shaft; and front-wheel drive.

申请中，赛尔登描述了一项机器是石油驱动、在驾驶座前有燃烧式发动机；离合器、脚刹车、前轮驱动。

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Rotation of one gear, the driver causes the second, or follower gear, to turn. The driving shaft is usually connected to the upper gear of the pump.

第一个齿轮即主动轮的回转引起第二个齿轮即从动轮的回转。驱动轴通常连接到泵上面的齿轮上。

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Beware of buying golf clubs for your giftee, unless you have very specific marching orders, such as a particular new driver model with a certain shaft, loft, lie angle and grip size.

WSJ: What to Get a Golfer for the Holidays | Golf Journal by John Paul Newport

The two-and-a-half-hour custom fitting experience includes computer recommendations for driver, fairway woods, hybrids, irons, and wedges, complete with specs for lie angle, loft and shaft, plus putter and even the correct golf ball.

FORBES: Take Strokes Off Your Golf Game Today - The Best Way To Buy New Clubs