线路的

Results show that vertical ground vibrations are generally greater than the lateral vibrations in the area vicinity to the central line of the railway, and decrease rapidlywith an increase in the distance to the central line.

结果表明：列车通过时，地面的竖向振动普遍比横向振动大；在靠近线路中心的区域，竖向振动随到线路距离的增加很快衰减；地面的横向振动有时比竖向的大，计算时不应忽略；地面振动强度和传播范围随地基弹性模量和埋深增加而减小。

To reduce the arrester switching and lightning protection level as well as spare parts for the arrester , this paper suggests the 600 kV rated voltage of the line side arrester be selected.

提出了线路侧避雷器的额定电压选为600kV，以降低线路侧操作和雷电过电压的保护水平，减少避雷器备品和备件的建议。

Combine with the analysis of the effect that caused by the shielding of topography and the conditions when lightning occurred on the top of the transmission tower, this paper bring forward a synthetical scheme that on the AnNan overhead transmission line, can use long life resistance reducer to reduce the ground resistance of the transmission tower,set up a shielding pull- line on the body of some tower,set up lightning arrester and take unbalance insulated method to improve the level of the line's ability of preventing lightning.

结合地面屏蔽效果分析和雷击杆塔塔顶情况分析，提出了在安南线采用降低杆塔冲击接地电阻、对部分杆塔塔身安装防雷拉线、加装线路避雷器、在双回路共架杆段采用不平衡绝缘配置等措施来提高安南线耐雷水平的综合方案。使用长效降阻剂，降低杆塔的接地电阻，这是提高线路耐雷水平、降低雷击跳闸率的有效措施。

Post-DSLAM installation: In this scenario, no customer premise equipment has been installed, but the physical loop has been pre-wired to the digital subscriber line access multiplexer. SELT can, with low complexity measurements and analysis, provide simple verification that the DSLAM port is physically connected to a physical loop and provide loading coil detection.

DSLAM安装后：在这种情形下，没有安装用户端设备，但是物理线路已经事先被连接到数据用户线接入复用设备上，SELT能够通过低复杂性的测试和分析，提供DSLAM端口物理的连接到了物理线路上的简单确认，并提供负载线圈检测。

In order to solve the fault location problem, this paper analyzes the electric structure of automatic blocking and continuous power transmission line, investigating the transient characteristics of traveling waves generated by different fault in the lines on the basis of traveling wave theory. The results show that transient process of earth fault and short fault in neutral noneffective grounding systems produce aerial mode component of traveling waves with steadyparameters.

为了解决自闭/贯通线路故障自动定位问题，分析了自闭/贯通线路电气结构的特殊性，以行波理论为基础研究了接地故障和相间短路故障产生的暂态电压、电流行波特征，发现接地故障和相间短路故障都存在参数比较稳定的行波线模分量。

The automatic two-way signaling used on these circuits causes the station instrument on one end of the circuit to ring when the station instrument on the other end goes off-hook.

这些线路上使用的自动双向信令引起线路一端的电话机振铃，而另一端的电话机摘机应答。

According to the learning of the Power l Supplying Projet, the primary design is about the 10kv switch-substation, according to the load and demand of the supply electric system of factory, the design of the gather reduction voltage substation and distribution system, and the checking of the main electric apparatus, the protection and adjusting and the lightning protection of the main voltage changer and line.

本文通过对供电工程的学习，主要是针对10kV开闭所进行初步设计。根据所提供的负荷及对供配电系统的要求，对主要设备进行选型校验，对主变压器、线路进行保护整定计算，对主、变线路进行防雷保护等。

Considering of the resistive component in the output impedance and line impedance, the reason of the active and reactive power sharing improperly is analyzed. The decouple droop control scheme is presented.

该文在考虑逆变器输出阻抗和线路阻抗中阻性分量的基础上，分析了因逆变器模块滤波电感和线路阻抗差异造成的无功分配不均的原因，提出了功率下垂解耦控制方法。

The scientific choice of city public transit line is beneficial to traffic conduction.

在城市中科学地选择公交线路对输导交通有着很重要的意义，作为公交线路模型在无线传感器网路模型中的投影，科学地建立骨干网也是具有重要意义的。

The b usiness proposal is b usiness secret, thereinto except the publicized data and materials, the reference and use of all the referred unpublicized contents and data are limited, and it only for allowable addressees of our company.

线路将要么以单圈3 段3金属丝线路要么以单段2金属丝线路的规格建设。线路应由未接地的木头和镀锌的钢柱组成。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。