The units painted on the dial of a scale are often mass units, not force units.
秤的刻度盘上所标单位是质量的单位,而不是力的单位。
These abilities are based on the regular and irregular assembly of basic mass units in the microscales.
而这些功能的实现,往往要依靠基本物质单元在微尺度上的有序或无序组装。
The average mass of an atom of an element, usually expressed relative to the mass of carbon 12, which is assigned 12 atomic mass units.
一种元素中原子的平均重量,通常相对碳12的重量来表示,碳12的重量定为十二个原子量单位。
The average mass of an atom of an element, usually expressed relative to the mass of carbon 12, which is assigned 12 atomic mass units.
一种元素中原子的平均重量,通常相对碳12的重量来表示,碳12的重量定为十二个原子量单位。
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