Temperature difference from top to bottom in preheating zone of tunnel kiln is the biggest obstacle for rapid firing, energy saving.

隧道窑预热带内上下温差过大是实现快速烧成、节能降耗的最大障碍。

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The arquebus is a very heavy weapon compared with the bow, and tires out soldiers on the march; their aims grow unsteady after half an hour's rapid firing.

火绳枪是很笨重的武器，使士兵在行军途中很容易疲劳，而且他们的射击精度很不稳定，纵使只经过了半个小时。

youdao

Based on analyzing the effect on the bullet motion by the revolving barrel gun, the firing correction method with rapid-fire revolving barrel gun is highlighted in this paper.

在分析转管炮对弹丸运动影响的基础上，重点描述了速射转管炮射击校正的方法。

youdao

First-grade teacher Kaitlin Roig heard what sounded like the rapid firing of an assault rifle.

CNN: STORY HIGHLIGHTS

How unlike the rapid firing off and counter-fire of email messages in which many of us find ourselves engaged nowadays as our predominant means of communicating with colleagues and friends, and even with complete strangers.

BBC: A Point of View: Mourning the loss of the written word

The lander will control its descent by firing individual thrusters in rapid, precise bursts under computer control.

ECONOMIST: Double, double, Hubble trouble