N a system for determining a position at sea, esp that of survivors of a disaster, by exploding a charge underwater at that point. The times taken for the shock waves to travel through the water to three widely separated shore stations are used to calculate their position 声发; 海底声定位测距法
Have you received any offers sofar?
到目前为止，你收到过录用通知书吗？
More than 30m have been sold sofar, 5 .2m in the quarter ending in June.
到目前为止, 卖出3000多万部,在截至6月末当季度的卖出520万部.
Nitrobenzene is one of the toxic compounds. Much work had focused on biodegradation of it sofar.
硝基苯是一种有毒化合物，目前，关于硝基苯污染物的生物降解已进行了大量的研究。
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