1·This paper discusses the cause of keyway symmetry error produced and test method and approaches to related calculating formulae.
论述了键槽对称度误差的产生原因以及检测方法，并对有关计算公式进行了探讨。
2·Improvement is made to the positioning feller gauge in flywheel keyway broaching machine by V-type auto center align.
利用V型块自动对中定位原理，对飞轮键槽拉床定位塞尺进行改进。
3·Milling cutter series: straight shank milling cutter, straight shank keyway milling cutter, prick milling cutter, nonstandard milling cutter.
铣刀系列：直柄铣刀、直柄键槽铣刀、锥度铣刀以及其它非标铣刀。
4·The paper prov rides a practical method of measuring and assessing the symmetrical error of the keyway in production and data processing formula.
本文提供了生产中实用的键槽对称度误差检测方法和数据处理公式。
5·This particular failure was accelerated by the sharp corners that had been cut in the shaft's rectangular keyway.
这个出格地掉败是加快由急弯时说，已被削减，在轴地矩形键槽。