The nozzle geometric parameters included hole number and diameter, hole angle and hole length-diameter ratio(L/D).

喷嘴结构参数包括喷孔数、喷孔直径、喷孔夹角和喷孔长径比。

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The reasonable combination of nozzle hole number, impingement angle and valve opening pressure is very important to the new conical spray.

喷孔数、碰撞角度和启喷压力三者的合理配合对第三代伞状喷雾至关重要。

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Scientists have discovered that a growing number of whales are suffering from sunburn - and that the hole in the ozone layer could be to blame.

科学家发现，越来越多的鲸鱼被晒伤，而臭氧层空洞则可能是幕后元凶。

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Then came hole number 15.

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Now, they didn't fill a 7 million hole in the number of people who were unemployed.

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Especially since the number of doughnut-hole denizens will peak right around election time next year.

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