For the past 25 years, we have been running a constant current account deficit.
在过去的25年里,我们始终保持着经常项目赤字。
It designs and makes a constant current power supply equipment used in measurement.
介绍一种计量用恒流电源装置的设计和制作过程。
This paper presents a determining method on low-resistance by using a constant current source.
提出一种用恒流源测低电阻的方法,并通过对康铜线绕低电阻进行实际测量。
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