The cabin remained largely empty and was padded with a layer of cotton insulation. Four large boxes have been installed in the cabin for collecting data during test flights.
舱室很空，覆有棉质衬垫缓冲层。四个大箱子被安装在舱室中以在测试飞行时收集数据。
This paper presents the structure and main design parameters of thermal insulation heavy duty tanker for bitumen transport, as well as the design and test of thermal insulation layer of the tank.
本文介绍了大吨位沥青运输保温罐车的结构型式、主要参数及罐体的保温层设计与试验。
It is showed in the test result that polyurethane foam heat-insulation layer has advantages such as weight light, strength high, absorbing water rate low and high heat -insulation effect and so on.
测试结果表明，聚氨酯泡沫保温层具有重量轻、强度高、吸水率低、保温效果好、离火自熄等特点；
Besides the complex plywood to be prepared by polyurethane foam taking as the core layer, and also the test measuring analysis had done for the absorbing and sound insulation.
另外，还制备了以聚氨酯泡沫为芯层的复合板材，并对它们的吸隔声性能进行了测试分析。
Besides the complex plywood to be prepared by polyurethane foam taking as the core layer, and also the test measuring analysis had done for the absorbing and sound insulation.
另外，还制备了以聚氨酯泡沫为芯层的复合板材，并对它们的吸隔声性能进行了测试分析。
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