释义 |
enn 英'en美'en COCA²²²⁴⁶⁴ 基本例句 = Expand Nonstop Network¹⁰⁰ The principle and design method of the programmable logic controller PLC are introduced in brief. The design strategy of the PLC-based electric control system for ENN2MN twisting machine is stated. 首先简要地说明了可编程序控制器 PLC的原理及其设计方法,然后提出了采用 PLC的 ENN2MN扭拧机电气控制系统的设计方案。 cnki |