usage n. 1.使用;用法;对待。 2.习惯,惯例,习俗。 3.【语法】惯用法;【法律】习惯(法)。 4.【机械工程】用损,损蚀;使用度。 an old man who met with harsh usage 一个受到虐待的老人。 a car damaged by harsh usage 一辆因使用不经心而被损坏的汽车。 modern English usage 现代英语惯用法。 keep an old usage alive 保持旧习俗。 according to usage 依照惯例。 by usage 习惯上;视为惯例。
Secondly , through the examination and observation of the structural model of the cast - in - place pre - stressed compound floor slab system , under the normal usage load , the normal usage limit - state and the failing load , we have validated the space working - feature of the structural model under variable loads , including the rigidity , the crack , failing - state , failing load and the stress variation of the pre - stressed bar , and so on 其次,通过对该体系的结构模型在正常使用荷载、正常使用极限状态和破坏状态下的试验研究,验证了现浇预应力复合楼盖体系模型结构在各种荷载作用下的空间工作性能,包括刚度、裂缝、破坏形态、极限承载力及预应力筋的应力变化状态等。