phase zero meaning in English

零相

It is helpful for us to make use of lca to analyze the project at the phase zero . and it is useful to reduce environment pollution and energy consume , raise society and economic performance . at last this article analyzes the application of lca in automobile substitute fuels
在项目的准备阶段进行项目的生命周期分析，从整体上把握项目，综合考虑各种因素，使项目在建设过程及项目产品的使用过程中对环境影响最小、能源消耗较低，以提高投资的经济效益和社会效益。
The problem is much more critical when the inverter frequency is high . in a welding machine , the main circuit with the technology of the soft - switching is much idealer than the hard - switching . firstly of all , by the theory of the soft - switching , this paper relatively analysis the advantages of the soft - switching and , with the help of the simulation software pspice , analyzes the main circuit of the full bridge shift - phased zero voltage zero current ( zvzcs ) soft - switching
结合软开关实现原理,本文首先对比分析了软开关在提高效率、降低emi干扰等方面的技术优势,通过pspice软件仿真,分析研究了全桥移相零电压零电流( zerovoltagezerocurrent - - - - zvzcs )软开关电路,详细介绍了该电路的软开关实现过程,并给出了电路模型和关键元件的设计参数。