... elementary magnet 单元磁铁 elementary mass 微元质量 elementary period 基本周期 ...
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氨基酸矿物质微量元素 Amino Acid
相应的质量微元，就告诉了我们，区域点的权重。
Because this would correspond to the mass element telling us how to weight the various points of our region.
对于水平井井筒的稳定单相流动，提出了水平井井筒管流的“微元段”观点，从而简单实用地解决了井筒内的变质量流问题；
A "theory of micro element" and equivalent seepage flow was raised to solve the various mass flow of single phase in the horizontal wellbore.
应用微元法给出了在三维欧氏空间中质量曲线和质量立体对任意一条直线的转动惯量的计算公式，并给出了对坐标轴的转动惯量的简化计算公式。
Via an infinitesimal method, the author offers a computing formula for the moment of inertia of mass curves and mass cubes against any straight line in Euclidean space.
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