双线的

There are mutual impedance and mutual admittance in zero sequence network of double circuit that makes it difficult to calculate fault circuits by symmetry component method.

用对称分量法进行超高压同杆双回线故障计算时将遇到零序分量间存在零序互阻抗和零序互电纳的问题。

The main design, production and sale of various electronic, electrical appliances, toys, plastics, machinery, Christmas ornaments, craft products matching Extension Spring,, torsion spring, wire forming, double torsion spring, flat spring, and special-shaped spring, a variety of hanger hook, balance computer keyboard strokes, metal stampings, and so on.

主要设计、生产、销售各种电子、电器、玩具、塑胶、机械类、圣诞饰品、工艺制品的配套拉簧、压簧、扭簧、线成型、双扭簧、扁形簧及异形簧、各种衣架钩、电脑键盘平衡杆、五金冲压件、等。

In addition the duplex system, antenna and feeder line are discussed.

另外对系统的双工体制及天馈线也进行了分析和讨论。

Copper Distributed Data Interface is a version of FDDI (Fiber Distributed Data Interface— a 100 million bit per second local area network) that runs on unshielded twisted-pair cabling rather than optical fiber.

铜线分布数据接口是FDDI(光纤分布数据接口，一种100Mbps局域网)的一种版本，传输线路采用非屏蔽双绞线而不是光纤电缆。

Modify the model by FreeForm software and dissecte the model of haunch bone; import the 3D visible model of haunch bone into Ansys8.0 software. Add mechanics parameter to the haunch bone model, construct 3D finite element model of acetabulum. 2、On the base of common fracture line of acetabular posterior wall fracture in clinical cases, split the acetabular 3D finite element model according to 1/3, 2/3, 3/3 areas fractures of posterior wall after simplify setting, obtain four types of acetabular posterior wall fracture model(including normal condition of acetabulum).

按髋臼骨折Letournel分类标准并根据临床髋臼后壁骨折病例常见骨折线位置，进行简化设定，依次按后壁1／3，2／3，3／3面积骨折将髋臼三维有限元模型后壁进行拆分，获得三种髋臼后壁骨折状态的有限元模型；再模拟双足直立位对髋骨约束设定，分别对后壁正常及不同面积骨折状态模型进行加载，获取各模型应力分布图并记录臼顶负重区、髋臼前壁和剩余后壁在不同后壁骨折状态下应力分布大小及改变。

Twisted pair,coaxial cable and optical fiber are the three main types of transmission medium used for LANs.

双绞线、同轴电缆和光纤是局域网采用的3种主要传输媒体。

Twisted pair, coaxial cable and optical fibre are the three main types of transmission medium used for LANs.

双绞线、同轴电缆和光纤是局域网采用的3种主要传输媒体。

A novel fault location algorithm for parallel transmission lines by one-terminal current is presented.

提出一种用单端电流实现双回线故障定位的时域方法。

The double crank four ring-plate-type cycloidal pinwheel reducer is a new type reducer based on a new drive principle.

摘要双曲柄四环板摆线针轮减速器是一种采用新型传动原理制成的减速器。

Planck constant and spin quantum number are calculated by the spacing of the twin line.These have high precision compared with theory value. sodium atomic spectra ; fine structure constant α; spin quantum number s

文献[2]用双光栅单色仪取代平面光栅摄谱仪研究钠原子光谱，能明显观察到谱线双重结构不同成分间的强度比

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。