钢筋混凝土桥腐蚀破坏,系由于防冰盐 、 海盐和环境污染的作用. Steel - reinforced concrete bridges are deteriorating from the corrosive effects of de - icing, marine salts, and environmental pollutants.
This paper studies the Pntimi _ zation of the composition and production process of intensified lactulose milk powder.要本文探讨了强化乳酮糖奶粉的最优化配方及最佳工艺流程.Furthermore , the rats of treatment group were given lactulose after 8 week...
They will be helped by the very latest in navigation aids.他们将会受益于最新的导航系统。Pack ice around Iceland was becoming a threat to navigation.冰岛周围的浮冰群曾一度对船只航行构成威胁。a laser navigation device激光导航装置...
The clay court was slippery and he was unable to move freely.红土网球场很滑，他不能自如地移动。Better driv-ing equipment will improve track adhesion in slippery conditions.较好的驾驶设备能够提升在湿滑路面上的抓地力。The tiled floor was wet and slippery.瓷砖地面又湿...