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1.The experiment shows, when the background gas pressure is less than 400 Pa,a bright emission small sphere exists before the target surface, and the diameter of the sphere is much larger than the size of the laser ablated point.
实验发现 ,当背景气压为 40 0Pa以下时 ,在靶面上存在一个明亮的发光球体 ,球体直径远大于激光烧蚀斑的大小 ,此球体向四周辐射等离子体光谱 ,只是在垂直靶面的方向辐射相对较强。收藏指正
2.The launcher was a two-stage light gas gun with the bore of 14.5mm. The sphere models with diameter of 10mm were made from polycarbonate and Aluminum separately. The flight velocities of the models were about 4～6km/s, InSb detectors were used for measurement of IR radiation with sensitive wavelength were 3～5.4μm.
发射器为 1 4.5mm口径的二级轻气炮 ,模型为?1 0mm的球 ,材料为聚碳酸酯和铝 ,模型发射速度 4～6km/s,使用红外InSb探测器测量波长 3～ 5 .4μm的红外辐射 ,靶室压力 5 .32kPa。收藏指正
3.Thermal Performance Research of 350MW Circular Sphere High Temperature Gas-cooling Reactor Under Loss of Cooling and Depressurization Accident
350MW环型球床高温气冷堆失冷失压事故下的热工特性研究收藏指正
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同义词辨析
这些名词均与“空气”有关。
atmosphere: 指围绕有的星球，特别是围绕地球的空气，即大气层。也可指环境气氛。
air: 指空气，也泛指一般气体。
gas : 指气态物，尤指供燃烧取暖或照明的气体，其中一部分称作瓦斯。
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