Yes, communication means has been tested. No problem.

是的，通信手段已经测试了，没有问题。

Yes, communication means has been tested, but it failed.

是的，通信手段已经测试了，通信不畅。

No, communication means has not been tested yet.

不，通信手段没有测试。

Communication means will be tested within 30 minutes.

通信手段将30分钟内测试。

Chief engineer: yes, of cours , have communication means been tested with the oil barge?

是的，完毕了。是否和加油船测试了通信手段？

The world was separated by oceans, mountains, and deserts, for the communications means were so retarded that China enjoyed a relatively safe environment except the threats from neighboring countries.

世界被海洋、群山、沙漠所分割，当时的交流受阻，中国享受着相对的安全环境，而没有看见邻近国家的威胁。