pitch of thread是什么意思 pitch of thread怎么读
pitch of thread的相关资料
pitchn.球场；程度；音调；推销；投掷；街头商贩摊位；沥青；树脂；松脂v.投；颠簸；搭帐篷；定调；推销；用沥青覆盖
pitchboard楼梯踏步三角定线板
pitch of thread的用法和样例
- The horizontal anger has a variable pitch.
横向搅龙具有可变的螺距。 - When the helicopter is inverted, add enough negative pitch to support the helicopter, and remove the Aft cyclic control.
当直升机到达最高点成为倒飞姿态时，增加负螺距使直升机的高度不会下降，将升降舵回到中立点。
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