Flow injection method is simple, rapid and accurate to determine urea in the swimming pools.
结论流动注射法测定游泳池水中尿素的方法简单、快捷、准确，适合游泳池水中尿素的测定。
This paper proposes an injection current based three phase power flow method.
介绍了凸极无刷直流电动机转子位置检测的电流注入法。
This paper proposes an injection current based three phase power flow method.
介绍了凸极无刷直流电动机转子位置检测的电流注入法。
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