交易者

Traders are classified into fundamentalists and chartists who have different expectation about the mean and variance of prices. They choose trading strategies based on their performances.

模型中的交易者对价格的均值和方差具有不同的预期，且根据交易策略的适应度来选择交易策略。

As the trend accelerates, pullbacks become more shallow. To hop aboard a fast-running trend, you need faster oscillators.

而在趋势的加速期，价格拉回修正的幅度较浅，要想跳上快速运动的趋势，交易者需采用快速的振荡指标。

Floor traders stand in the pit, trading with each other, but more often against the public.

场内交易者在交易所现场，相互之间交易，但大多数是和大众相反的。

The floor tries to push prices through several well-known levels on most days, flushing out weak holders.

大多日子里，场内交易者会尽力把价格推到几个比较明显的水平，把软弱的持有者洗出去。

If the cost is very heavy , potential hedgers will prefer not to hedge .

如果成本太大，潜在的套利交易者就宁可不进行套利交易。

There are also two kinds of traders: the hedgers and the speculators.

还有两种交易者：对冲避险者和投机者。

Hedgers and floor traders closely watch premiums because they reflect the degree of tightness in the market.

对冲者和场内交易者都关注溢价，因为它们反映了市场的紧张程度。

For this very reason forward markets rarely consist entirely of hedgers .

正因为这一理由，远期市场很少全由套利交易者组成。

Go down to Wall Street today after work with the hot-shot traders all earning $500,000 a year at the big banks and you'll find very few who talk about Freud being the ticket to making millions.

如果你下班后与在华尔街银行工作，年收入 500000 美元的著名交易者谈话，你会发现很少有人认为弗洛伊德是通向百万的道路。

The bottom line: Those hundred-year floods that give mean-reversion traders solace really occur every two or three years - and they can and do wipe out fortunes.

简单说：百年一遇的洪水只是给均值回归交易者的安慰而已，实际上洪水每2，3年就会发生一次--一旦洪水来了，你的财富就没了。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。