| 1. | Unshielded twisted pair utp
无屏蔽扭绞线对 |
| 2. | Coaxial and coaxial twisted pair composite service wires for aerial applications
架空设备用共轴和共轴绞线对合成服务线 |
| 3. | Commercial building telecommunications cabling standard - part 2 : balanced twisted - pair cabling
商用建筑物电信电缆敷设标准.第2部分:对称绞线对电缆敷设 |
| 4. | A two wire system then requires two twisted pair , and a four wire system requires three twisted pair
一个二线制系统两个双绞双绞线对，一个四线制系统需要三个双绞线对。 |
| 5. | Individually unshielded twisted pair indoor cables for use in communication wiring systems - technical requirements
通信配线系统中使用的独立无屏蔽室内绞线对电缆.技术要求 |
| 6. | 1000base - tx a full duplex ethernet physical layer specification for 1000mb s 1000base - tx operating over category 6 balanced twisted pair cabling
在6类平衡绞线对电缆上用1000mb s |
| 7. | The field tester should compare successive readings across the frequency range against a typical pass / fail line , such as the class d specification
当总体的磁场强度变化时，它明显的上下变化，这是因为双绞线对较高的频率不敏感。 |
| 8. | That is , it varies up and down significantly , while generally increasing in magnitude . this is because twisted pair coupling becomes less effective for higher frequencies
当总体的磁场强度变化时，它明显的上下变化，这是因为双绞线对较高的频率不敏感。 |
| 9. | It is proved through tests that on one cable , the maximum cross talk comes from a basic unit that is composed of 25 twisted pairs . however , the cross talk of one twisted pair to other basic units is not quite remarkable . so , the cross talk between twisted pairs in one basic unit is the major factor deciding the commissioning rate of adsl services
测试表明，在同一电缆中，以25对双绞线为一组的基本单位内的线路串扰最大，而一对双绞线对不同基本单位内的线路串扰较小，所以同一基本单位内线对之间的串扰是影响adsl业务开通率的主要因素。 |
| 10. | Combined with the full scale models tested in - situ of prestressed concrete penstock with double circle unbonded strands and single circle bonded strands of xiaolangdi multipurpose dam project of yellow river , the advantages and disadvantages of two different prestressed systems are analyzed , the concrete stress distributions of the prestressed concrete penstock are induced and summarized during the whole tensioning strands stage . the consistence among the test results , the theory calculating and the three dimensional finite element analysis is proved . therefore , the theoretical method of prestressed concrete penstock is feasible
结合黄河小浪底水利枢纽工程在施工现场进行的采用双层双圈环形无粘结预应力钢绞线和单圈有粘结预应力钢绞线对排沙洞衬砌混凝土施加预应力的1 ： 1模型试验，对比分析了两种后张预应力施工体系的优劣，归纳总结了预应力筋束张拉过程中预应力混凝土压力管道结构管壁混凝土的内力分布规律，验证了模型试验实测数据、理论计算和三维有限元分析结果的一致性，确定了预应力混凝土压力管道理论计算方法的可行性。 |
