air base service area 航空基地勒务区
Hao Jie production base, located in the Pearl River Delta, Guangdong area, distribution and service network all over the country.
昊杰生产基地地位于珠江三角洲的广东地区，经销和服务网络遍布全国。
LMDS network is composed Of backbone network, network operation center, service area base -station system and service area user equipment.
LMDS网络由骨干网络、网络运行中心、服务区中的基站系统和服务区中的用户端设备组成。
In north cold area pavement is usually distressed because of heave factor, and the base may reduce water heave function and increase pavement service life.
北方寒冷地区路面损坏主要是由于冻胀等因素引起的，这种基层可以减小水分的冻胀作用，增加路面使用寿命。
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