direct-current main

基本解釋

As the current main way of the international direct investment, cross-border merger and acquisition played an important role in the global economic restructuring.
跨國(guó)并購(gòu)作為當(dāng)前對(duì)外直接投資的主要形式，在這次全球性的經(jīng)濟(jì)結(jié)構(gòu)調(diào)整中扮演了重要的角色。
PPTA (polyphenylene terephthalamide) pulp was prepared by semi-continuous direct polycondensation using a co-current rotating and meshing twin screw extruder as main reactor.
以同向嚙合旋轉(zhuǎn)的雙螺桿擠出機(jī)作為主反應(yīng)器，采用半連續(xù)化直接縮聚法制備了PPTA漿粕。
Coal mine hoisting control system is made up of multifunction digital depth system, master control system, all-digital system of direct current timing, main computer system and signal system.
礦井提升機(jī)計(jì)算機(jī)控制系統(tǒng)主要由以下五部分組成：多功能數(shù)字深度指示系統(tǒng)、主控制系統(tǒng)、全數(shù)字直流調(diào)速系統(tǒng)、上位機(jī)管理系統(tǒng)和信號(hào)系統(tǒng)；