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By the time that mr carey became chairman , the dynamics of the rivalry between the two was changing as the merc achieved a stock market listing .

到凯里成为董事长时，由于芝加哥商业交易所已完成股票上市，两者之间的敌对状态出现了改变。

New york merc works on an open outcry system .

纽约商业交易所建立在一个敞开的大声呼喊的系统。

But in 1972 , mr melamed pioneered the launch of the world 's first futures contract that was not based on an agricultural commodity such as pork bellies at the merc , or grains at the cbot : a future on foreign currencies .

但在1972年，梅拉米德率先启动了外汇期货合约，这是全球首个不以大宗农产品（如芝加哥商业交易所的猪肉或芝加哥期货交易所的谷物）为基础的期货合约。

These are registered trades from the merc floor .

这些是商交所登记的交易。

Why would someone with a merc want to kill himself ?

为什么有这种车的人会想自杀？