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ABBREVIATION for (in the US) Center for Disease Control (美国)疾病控制中心
DC power supply cabinet: three-phase silicon-controlled rectifier (SCR), computer digital pulse triggers plate, flat-wave inductor, L, C filter, etc.
直流电源柜：三相可控硅整流桥（SCR）、计算机数字脉冲触发板、平波电感、L、C滤波器等组成。
High quality cubic boron nitride (c BN) films were synthesized in lab built magnetically enhanced active reaction evaporation system with pulsed DC bias.
采用自行研制的磁增强活性反应离子镀系统，在脉冲偏压条件下成功地合成了高品质立方氮化硼(c BN)薄膜。
NR-relay. Long life relay. 1 form C. Coil voltage 5 V DC. Magnetically sealed type. Single side stable.
NR继电器。长寿命继电器。 1表C线圈电压5伏直流。磁密封型。单面稳定。
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