technical classification造句

Dividing and rating methods for technical classification of postal van
邮政专用汽车技术等级划分和评定方法
Based on site investigation , this paper probes into the technical classification , main engineering characteristics , and construction technology for cemented pebbles , and recommends the construction technology of " dredging after loosening "
摘要通过实地试验，对胶结卵石技术分类、主要工程特性、施工工艺等进行了分析研究。提出先采用机械冲击松动后用挖船清渣的“先松后挖法”的施工工艺。
It's difficult to find technical classification in a sentence. 用technical classification造句挺难的