When they are being manufactured in a weightless environment, those atoms line up absolutely perfectly. The vacuum of space also means that contaminants can't sneak in.
Credit: Samsung
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Medics are often expected to work night shifts, weekends and longer hours, for which they receive extra payments.
（二）境外单位或者个人销售的服务、无形资产与境内的货物、不动产、自然资源直接相关；