steam drum造句怎么写

4、Description of the cause on the bottom swelling of steam drum and the technical requirements for the excavation& remedy, and the details for the repairing procedures and the process.

2、This paper elaborates some opinions about steam drum water lever measuring technique and application of control device in sub-critical units.

1、Deviation analysis of connected tube type two-color mica water gauge for steam drum

3、The dynamic characteristics of steam drum water level along with its traditional control technology and the fuzzy control theory have been detailedly analyzed in this paper.