The hidden danger of electronic commerce had two aspects which were external and internal factor, hence, it should prevent and guide from the layer of technology and management.
电子商务安全隐患的存在表现为外在因素和内在因素两个方面，为此，必须从技术层面和管理层面加以防范和引导。
Have designed the frequency modulation circuit in the CIC-CPPFC electronic ballast circuit, which would decrease the crest factor of circuit.
设计了用于电流输入连续型电荷泵功率因数校正电子镇流器的调频电路，以减小电路的峰值系数。
By electronic microscope analysis, it is found that there is a certain amount of second dispersed phase in the martensite matrix which is the metallurgical factor of forming built-up edge.
通过电镜分析，发现在马氏体基体上有一定数量的弥散的第二相存在是引起积屑瘤产生的冶金因素。
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