一旦建筑工人完成跨江大桥工程，过江就容易了。
It will be easier to cross the river when the builders have finished putting the new bridge across.
并对青海大柴旦地区和湖北潜 江地区的石盐中的硼进行了提取和同位素组成的测定；
The isotopic compositions of boron in halites from Qaidam Basin, Qinghai Province and Qianjiang, Hubei Province were measured.
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