Stock removal rule is experimentally analyzed and affected by magnetic force and magnetic pole shape, and are good agreed with theoretical resolution.

实验研究了磁场力、磁极形状对切削量的影响规律，结果与理论解析一致；

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Magnetic field distribution, magnetic field force and stock removal rule have been especially investigated, at the same time, corresponding experimental analysis is carried out in this paper.

研究了磁场分布、磁场力及材料去除规律并进行相应的实验分析。

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The SEC's removal in 2007 of the uptick rule (which held that a stock couldn't be shorted unless it had gone up in price), as well as its failure to enforce the rule against naked short-selling (an investor is supposed to borrow the shares before he shorts them), increased pressure on beleaguered banks and insurance company equities.

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