combinatorial sums

The article talks about the technology of the united combination and hoisting of high or low temperature overheater in the power plant.

分析锅炉过热器安装中常遇到的多联箱组合和吊装加固方法,并提出高、低温过热器采用联置式组合吊装技术。

3-layer combination casing strength analysis and calculation;

三层组合套管强度分析与计算

Progress of combination photocatalytic oxidation in wastewater treatment;

组合光催化技术在水处理中的应用

A new injection profile combination logging tool and its application;

一种新型注入剖面组合测井仪及其应用