While mid-wave antenna is mostly iron tower antenna, we do not use directional antenna except that we need special service in special area.
中波天线大部分采用铁塔天线，非特殊地形或特别要求的服务区外，均采用不定向天线。
There are many industrial enterprises in the service area of Jiangna Pump Station, with sewage not reaching the takeover standard and drainage without due approval, the wastewater quality is strong.
江南泵站服务范围内有许多工业企业，且有污水没达到接管标准有偷排现象，污水水质较浓。
Various measures were taken depending on whether acid circulated or not to keep the acid cooler in the safe area of anodic protection with a stable passive film and thereby lone service life.
针对停车期间酸是否循环提出不同的应对措施，以使酸冷却器位于阳极保护的安全区，确保钝化膜的稳定，延长设备的使用寿命。
Various measures were taken depending on whether acid circulated or not to keep the acid cooler in the safe area of anodic protection with a stable passive film and thereby lone service life.
针对停车期间酸是否循环提出不同的应对措施，以使酸冷却器位于阳极保护的安全区，确保钝化膜的稳定，延长设备的使用寿命。
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