A Japanese spacecraft has spotted two huge holes in the sun — gateways for solar material and gas to spill out into space.
日本宇宙飞船在太阳上发现两个巨大的空洞，它是太阳燃料和气体溢出来进入太空的通道。
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Quartz crystal microbalance test technique is widely used in monitoring non-metal material outgassing and molecular contamination condensation on sensitive system surfaces of spacecraft.
石英晶体微量天平测试技术可用于监测非金属材料出气和航天器敏感系统表面的分子污染沉积。
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The paper introduces the manufacture, debugging and application of laser puncher for thermal controlling thin film material plating aluminum used on spacecraft.