[詞典] arbitrage rate; arbitrage rate of exchange; cross rate;
[例句]電腦套結機是壹種用途廣泛的特殊縫制設備，其主要功能是使縫紉線跡牢靠，其中的挑線機構和送料機構是電腦套結機的兩個關鍵機構。
The computer knot machine is a special sewing equipment, picking thread mechanism and feeding mechanism is two key mechanism.