For example we can require that prices be above a specified moving average in order to initiate buy signals and below that same moving average to generate signals to sell short.

例如，在产生买入信号前我们要求价格必须在某一移动平均线之上，在产生卖空信号前我们要求价格必须在某一移动平均线之下。

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Margin money deposited into a stock account in order to borrow money to purchase or sell short securities.

保证金存在股票账户上用来借钱买卖短期证券的资金。

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Margin money deposited into a stock account in order to borrow money to purchase or sell short securities.

超额保证金在长期或短期账户中，超过法定保证金维持范围的股票账户净值。

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Traders and active investors who would rather buy than sell short in order to take advantage of any setback in the Asian stock rally may want to consider a leveraged, inverse alternative: the ProShares UltraShort FTSE China 25 ETF (NYSE: FXP).

FORBES: Pullback Looks Probable In Asian ETFs, Check Out The FXP For Bearish Play

Buyers of traditional convertibles often sell issuers' shares short in order to offset the option element and leave themselves with what amounts to a pure bond.

ECONOMIST: Lawyers turn their attention to ��death spiral�� bonds

You can then place a limit-sell order a few pips below that resistance level so that your short order will be filled when the market moves up to that specified price or higher.

FORBES: How To Place Orders With A Forex Broker