twoprongadj.双尖的twonum.二；两个two component spray apparatus双组份喷涂机two thousand and seventy nine(=2079) 二千零七十九two types of chemical balance两种化学天平two-player sequential games二人序贯博弈Two years live the Astragalus2年生黄芪Two-fund separation theorem两基金分离two-gang variable capacitor双联可变电容器two way operator office trunk双向操作人员用局内中继线two-line voltage modulation双线电压调制two-color infrared detector中波双色红外探测器

1. If the fiber fails the test, another cable test instrument can be used to indicate where the optical discontinuities occur along the length of the cable link.
   假如光纤测试失败，另一缆线试验仪器可使用来指出沿著这缆线链结的长度，哪里是光学不连续发生处。