This paper describes the method of channel survey and technical control essentials of inland rivers (mainly canal), which provide a reference for similar engineering survey.
列举内河(主要是运河)航道测量方法和主要技术控制的要点，可供类似工程测量借鉴。
A general technical survey is made of China's sulphuric acid engineering design based on pyrite, metallurgical off gases, gypsum or phosphogypsum and sulphur.
对我国硫铁矿、冶炼烟气、(磷)石膏、硫磺制硫酸的工程设计进行全面的技术总结。
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