Absolute ethanol and a mixed solution of ethanol and benzene with the volume ratio of 1:1 are used as the solvents, and carbon disulfide and sulfur powders as the sulfur ions source, respectively.
分别以无水乙醇及体积比为1：1的无水乙醇与苯的混合溶液为溶剂，以二硫化碳和单质硫为硫源。
These are sessions in which the ratio of the trading volume of rising issues to that of declining issues on the New York Stock Exchange is at least 9 to 1.
在这两个交易日当中，纽约证券交易所上涨股票与下跌股票的成交量之比至少都达到了9比1。
These are sessions in which the ratio of the trading volume of rising issues to that of declining issues on the New York Stock Exchange is at least 9 to 1.
在这两个交易日当中，纽约证券交易所上涨股票与下跌股票的成交量之比至少都达到了9比1。
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