holding rod是什么意思 holding rod怎么读
holding rod的用法和样例
- Holding the pole neutrally helps the pole to be facing toward the goal at the time of a game touching sharp.
中性握杆有助于面触球时正对着目标。 - They consist of two switches and a control rod with two moveable collars.
它们包括两个开关和一个带两个活动轴环的操纵杆。
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