This article outlines the alteration to new and old ventilator's airflue .
本文概述了新、老通风机风道接口的改造。
2
Further analysis based on the checking calculation and tests proved that corrosion fatigue is the main reason that causes leakage in the airflue.
基于校核结果的进一步分析和测试表明，腐蚀疲劳是汽化器漏水故障的主要原因。
3
The equipment pipe and air and flue gas ducts etc. supplied by the contractor shall be made in maximum allowable dimensions to reduce the fabrication on site.