We also discuss the cruxes in oil detection by magnetic survey.
本文就磁测找油的几个关键问题进行了讨论。
The contact zone between roller and workpiece and its contour's definition are the cruxes of establishing the FEM mechanical model.
在建立筒形件强旋有限元力学模型过程中，旋轮与工件接触区及其边界的描述是重要的一环。
One of the cruxes of the industrial scale production of protein is its separation and purification, the characters and key problem of which are analyzed.
蛋白质分离纯化是蛋白质产品工业化生产的关键之一。
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