testing instrument

• 试验仪器

testing instrument的用法和样例：

例句

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。