物质点的运动表示了固体变形的全过程并用拉格郎日观点描述。
The material points are followed throughout the deformation of a solid and provide a Lagrangian description that is not subject to mesh tangling.
GRAIL号是根据类似的名叫Grace号的地球重力绘制任务而制造的，Grace号也是利用了拉格郎日点。
GRAIL is closely based on a similar Earth-gravity mapping mission called Grace, which also made use of a Lagrange Point.
GRAIL号是根据类似的名叫Grace号的地球重力绘制任务而制造的，Grace号也是利用了拉格郎日点。
GRAIL is closely based on a similar Earth-gravity mapping mission called Grace, which also made use of a Lagrange Point.
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