Now shanghai en bed base co . , ltd has about 100 employees about 250 employees when in season including 20 senior employees respectively in charge of technique , production quality control , management and international trading 上海大犹家具有限公司目前有员工100人左右旺季时250人左右。其中技术，管理，品控及外贸人员约20余人。
Abstract : this paper analyzed the mechanism of solutes removal from water in a pa cked granular bed based on the principles of adsorption equilibrium and mass tra nsfer , put forward a numeric method to predict the treatment effects , and how to u se the method in actual situation 文摘:本文从对流传质和吸取平衡的基本原理出发，分析了颗粒填充床吸附溶质的机理，提出了用吸附模型的一种数值解来预测过滤处理的结果，以及如何在实际中应用该方法。
In order to adapt well to the development of the overhaul with the locomotive , the article introduces a digital auxiliary motor test - bed based plc and touch screen technology , being an updated product of routine manual switch and relay - controlled test - bed , it can accomplish the functions such as testing , checking and other manipulations to d . c engine , a . c engine and phase converter through hmi - touch screen 为适应机车检修水平现代化的发展步伐，本文研究设计了基于plc和触摸屏技术控制的机车数字化辅机试验台，作为常规的手动开关和继电器控制试验台的升级换代产品，通过人机界面( hmi ) ? ?触摸屏完成对直流电机、交流电机、劈相机的试验检测操作。
