This paper advances a novel rotary ball pulsing nozzle based on whistle principle in daily life.
依据日常生活中的口哨原理提出了一种新型滚珠旋转脉冲喷嘴。
The basic principle is though three root ball screw control platform, by the measurement of nozzle, three motor to adjustable height accordingly, easily implemented leveling!
其基本原理就是平台通过三根滚珠丝杠控制，上面对应三个电机，经过喷头测量，三个电机相应调节高度，很轻松实现了调平。
Selection basis and method on allowable contact stress of rolling ball-socket nozzle were described. Based on empirical formula and test data, several factors affecting allowable stress were analyzed.
叙述了滚动球窝喷管在设计中许用接触应力的选择依据及方法，并根据以往的经验公式及其试验数据对影响许用接触应力的几个因素进行了分析。
The control valve comprises an oil nozzle and a check valve. The check valve comprises a valve ball and a valve seat.
本控制阀包括油嘴和单流阀，单流阀包括阀球和阀座。
The control valve comprises an oil nozzle and a check valve. The check valve comprises a valve ball and a valve seat.
本控制阀包括油嘴和单流阀，单流阀包括阀球和阀座。
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