You should get some foam pipe insulation for the short galvanized pipe and the few feet of hose that is exposed to the outside.
暴露在外的镀锌短管以及数英尺的软管要用泡沫隔热材料予以包扎。
Exposed flange faces and pipe threads shall be protected from chemical solutions.
暴露的法兰面和管螺纹应保护好，以避免受到化学溶剂的腐蚀。
Based on the meterial and heat balance calculation of single pipe reactor technology, some problems resulting in high ammonia consumption are exposed in the DAP plant.
对单管反应器工艺技术的装置系统进行物料平衡、热量平衡分析，从中发现装置存在的一些工艺问题，导致DAP产品的氨耗偏高。
As the outlet pipe of well F1 is exposed, it has completed rotten, and lost the drainage function, so we have to rebuilt the downstream offtake.
由于人井f1的出水管暴露在人井外，且已锈蚀腐烂，完全失去了排水作用。故f 1下游排水渠需从新铺设。
As the outlet pipe of well F1 is exposed, it has completed rotten, and lost the drainage function, so we have to rebuilt the downstream offtake.
由于人井f1的出水管暴露在人井外，且已锈蚀腐烂，完全失去了排水作用。故f 1下游排水渠需从新铺设。
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