首批两架直升机将用于研发目的，并在未来五年用于培植测试机组配套设备。
The first two aircraft will be used for developmental purposes, and the next five after that will be used to train the first unit equipped, he said.
本文以DVD、 CD-R、和CD-W媒体设备为例，论述了测试媒体在测试机械性能、光学性能、 电子性能方面的测试方法和功能。
The article took the DVD, CD-R and CD-W for examples, and then illustrated the testing methods and functions of the test media in the mechanical, optical and electronic performance tests.
当中包括光普分析仪、盐雾测试机、红外线回流焊、恒温炉、电流负载等设备。
Including optical analyzer, salt spray test machine, infrared reflow soldering, constant temperature oven, current load, etc.
应用推荐