从系统结构、软件体系等方面详细论述了宝钢三期原料场控制系统中的PLC热备冗余技术的具体应用。
From the system structure and software organization, the application of hot standby PLC technology in the control system of Bac Steel Third Phase Raw Material Yard is also discusses in detail.
目的探讨口服片剂帮备对慢性支气管炎急性加重期的治疗效果。
Objective To discuss the curative effect of COPD at acute severe stage treated with Bangbei.
备抵账户估价越大，记入坏账损失的当期支出就越大。
The larger the valuation allowance, the larger the current charge to uncollectible accounts expense.
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