老师点了点头，把 Vishal 放回地上，他无精打采地坐在一副七巧板前。
The teacher nods and puts Vishal back on the floor, where he sits listlessly before a jigsaw puzzle.
文章分析了孔板的开孔率对管路最大流量、孔板前压力、孔板后压力和孔板前后压差等的影响。
The paper analyzed the influence of the orifice ratio on maximum discharge, the inlet pressure, outlet pressure, differential pressure, ect.
介绍了一种常用于SSJ1400/4×400型巷道带式输送机的多用途卸料缓冲装置，此装置既能解决挡煤板前的积煤问题，又增加了挡煤板的推拉功能。
This paper introduces a multi-purpose unloading buffer device that is commonly used with the type SSJ1400/4X400 belt conveyor for use in tailgates.
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