vent hole

The methods of inlet channel of laval nozzle and smaller area of vent hole have been put forward to limit the spin rate of turbine generator.

提出选用拉伐尔管式进气道、和较小的排气孔面积的方法来限制涡轮发电机的转速。

The sky is but a vent-hole.

天好象是暗室中的透光眼.

So often easily design overflow and air vent at inappropriate location, making casting generated gas hole.

所以常常容易因为溢流井与逃气道位置设计不当，使得铸件产生气孔的缺陷。

The second positioning piece is arranged within the hollow tube in adjacency to the air vent, and includes a second punch hole communicated with the air vent.

一第二定位件，设置于所述中空管体内邻近所述出气口处，并包括一与所述出气口相连通的第二穿孔；

The results of this test proved that the reasonable choice of pressure and air vent hole was the critical element for cooing velocity and cooling uniformity.

结果表明，合理地选择压差以及包装箱开孔大小对葡萄的冷却速度、冷却均匀性起着关键的作用。

I know not what vent-hole daylight habitually illumined his soul.

我不知道是怎样一种黯淡的光经常照着他的心.

Based on the former returns and design experience, the following aspects are ameliorated, including the top shape, vent hole, slag runner, spline, button shape, button distribution etc. Then the three-dimensional solid model of physics exploration bit after amelioration is confirmed.

根据前面的研究成果和前人的设计经验，对钻头端面形状、排气孔、排渣槽、花键、齿形、布齿等进行改进设计，并给出改进后的物探钻头三维实体模型。