常見例句雙語例句An analysis study was conducted on the strength and safety of the backfill material based on the engineering mechanics.并基于工程力學對充填體強度及其安全性進行了分析研究。www.mtkxjs.com.cnUltrafine comminution technology is a high technology involved with such fields as mechanical, material and powder engineering and applied mechanics.超細粉碎加工技術(shù)是一門涉及機械、材料、粉體工程以及力學等多學科領域的高新技術(shù)。It is very difficult to determine the directions of the principal stresses or strains in plane problem for teaching material mechanics and engineering application.平面應力和平面應變狀態(tài)下主應力和主應變方向的確定，無論是在工程應用還是在材料力學教學中都是非常重要的難點。 返回 engineering material mechanics