The survival curve between the groups with and without postoperative radiotherapy both in negative margin group and positive margin group were also compared.

比较切缘阳性组给予与不给予术后放疗者的生存曲线；比较切缘阴性组给予与不给予术后放疗者的生存曲线。

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The group had a net profit margin of 30% last year.

该集团去年的净利润空间为30%。

《柯林斯英汉双解大词典》

The next shock could be the failure of a hedge fund with a big swap book, given the spike in redemptions and margin calls many funds face, thinks Pierre Pourquery of the Boston Consulting Group.

波士顿咨询集团的Pierre Pour query认为，考虑到基金面对上升的赎回率和保证金要求，下一波冲击的受害者可能来自持有大量掉期合约的对冲基金倒闭。

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The CME Group hiked margin requirements four times in two weeks in silver, mandating that people who wanted to trade it needed to post a greater amount of collateral than before.

FORBES: METALS OUTLOOK: Gold Could Stabilize Next Week, But Analysts Cautious

Second, at least 5 percent of the volume of sales to the allegedly targeted group must be at prices that are lower than the average price of the lowest-priced non-targeted group by a margin (a gap) that is greater than the average gap between the average prices of all the non-targeted groups.

FORBES: Protectionist Antidumping Regime is a Pox on America's Glass House

News the CME Group again raised its margin requirements for gold also prompted long liquidation in the futures market.

FORBES: P.M. Kitco Metals Roundup: Comex Gold Hits New High of $1,817.60, Then Backs Off Sharply on Profit Taking, Margin Hike