EX151 Dowtherm system is used for maintaining the temperature of Nacl bed and cooling Nacl Bed, heating equipment and heat tracing pipelines.是什么意思_EX151 Dowtherm system is used for maintaining the temperature of Nacl bed and cooling Nacl Bed, heating equipment and heat tracing pipelines.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句