The article introduces the technology of liquefied nitrogen freezing for the construction of the drain repairing of communicationpassage.
本文主要介绍了旁通道排水管修复液氮冻结加固施工技术,为今后类似排水管修复工程提供经验。
2
The plan can make the relay trip quickly and does not lose its selectivity without the communicationpassage. The program takes full advantage of the microcomputer's memory storage function, rec...
该方案克服了传统保护段的较长时限,在不采用通讯通道的情况下,保证保护的选择性,实现加速跳闸。
3
According to the passage, why are people more likely to tell the truth through certain media of communication?