E1 transmission lines are widely used in communication network systems in our country. Testing and analyzing performance of E1 line become a key factor for network maintenance.
E1传输线路在我国通信网络系统中具有广泛的应用，对其传输性能的分析与检测成为维持网络正常运行的关键因素。
Methods Cell culture technique in vitro had been used to study the growth condition of MC3T3-E1 osteoblast line on the surface of cementum treated with various methods.
方法应用体外细胞培养技术观察MC3T3 - E1成骨细胞株在不同处理的牙骨质表面的生长状况。
Best selected the plastic material in line with the Europe E1 standard and the steel material with good performance carefully, used to manufacture the desk top and desk bases.
Best精心挑选了符合欧洲e1级环保标准的塑料材料和性能良好的钢材用于制作桌椅面和桌椅脚。
Best selected the plastic material in line with the Europe E1 standard and the steel material with good performance carefully, used to manufacture the desk top and desk bases.
Best精心挑选了符合欧洲e1级环保标准的塑料材料和性能良好的钢材用于制作桌椅面和桌椅脚。
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