An initial weight is obtained by weighing the mandrel and the tube of plastic film then a slurry composition is deposited inside the closed tube.
通过称量心轴和塑料薄膜管以得到初始重量，然后将浆料复合物沉积到密闭管中。
A numerical study was carried out for the thermal effects of laser propagating in a closed tube with air. The calculation results were compared with the experiment ones.
对连续激光在封闭充气管道中传输时的热效应进行了数值计算研究，并与实验情况进行了比对。
It is one of around 40 disused Tube stations in London; most closed because they weren't very busy.
这是伦敦大约40个废弃的地铁站之一，因使用率太低大多都已关闭。
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