英语语法分析

A portable torsional vane shear device has been developed to meet the needs of research work in marine geology, river exploration, geotechnics, oil drilling and soil mechanics.

鉴于海洋地质、内河勘察、地下工程、石油钻探以及土壤研究的需要，我们借鉴国外仪器的特点设计了袖珍十字板剪力仪。