Therefore, it is necessary to carry out part of the performance of pre-installationtesting.
因此，有必要在安装前进行部分性能的检验。
2
To keep the equipment in safe and reliable operation all the rules about installationtesting operation and maintenance on the manual should be familiarized.
Localization services all types of antenna system with independent intellectual property rights of domestic equipment, all manufacturing, installationtesting are localized.