... unilateral conductivity 单向导电性单向电导率 unilateral diode 单向二极管 unilateral gear 单侧齿轮 ...
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机床电器-成都机床电器研究所 关键词： PLC；编程；扩展I/O点；单向二极管；桥式电路 [gap=530]Key words： PLC; programming; expansion I/O; unidirectional diode; bridge circuit
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单轴向引线二极管 individual axially-leaded diode ; leaded
二极管是一种只允许电流单向流动的元件。
A diode is a device which only allows current to flow in one direction.
方法运用单向灌流模型并采用HPLC法（配备二极管阵列检测器）同时测定莪术油中三成分在灌流液中的浓度。
Methods In situ single pass perfusion model was used and the concentrations of three components in perfusate were determined by HPLC in combination with diode array detection.
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