1·The shaft is splined to lock into the disc to ensure positive rotation.
阀杆用花键锁在阀瓣上，以确保旋转灵活。
2·Positive values for the angle rotate the object clockwise if you look along the positive rotation axis.
角度为正值，则表示若您顺着正旋转轴方向观察，对象是按顺时针旋转的。
3·Propeller is designed distinctively, positive rotation for rolling. kneading and knocking, inversion for massage.
浆叶设计独特，正转滚揉摔打、反转按摩。
4·The pore water pressure under positive rotation of principal stress axes is smaller than that under inverse rotation.
主应力轴正向旋转较逆向旋转产生的孔压小；
5·The shaft shall be hexagonal or square to ensure positive rotation of the disc and be totally sealed from exposure to the process liquid.
阀杆应该是六角形或方形，以确保阀瓣能够灵活旋转，并且完全密封，不会暴露在处理的液体里。
6·When the clutches are all closed, the cleaning machine runs forwards or backwards as the negative and the positive rotation of the driving motor.
涡轮轴上及后轮轴上设有一对离合器，当离合器全部合上时，清洗机随着驱动电机的正反转而前进或后退。
7·A power amplification of H-bridge bipolar PWM control is designed for controlling DC micro-motor of positive rotation, reverse rotation and speed regulation.
基于H型双极模式P WM控制原理，设计了一种直流微电机正反转调速功率放大电路。
8·The field experiments were carried out by using the principle of agricultural systems engineering and the modular design between quadratic regression and positive rotation.
运用农业系统工程原理，采用二次回归正交旋转组合设计进行田间试验。
9·Positive frequencies are produced by anticlockwise rotation and negative frequencies by clockwise rotation.
正频率是用逆时针旋转来产生，而负频率是用顺时针旋转来产生。
10·Our fingers will curl in the positive direction of rotation.
我们的手指将收拢于正旋转方向。