strengthenern.助力器;坚固者
strengthenv.加强;变坚固
strengthen cooperation加强合作
strengthened ring beam加强环梁
strengthen and rebuild加固改造
strengthening grouting补强灌浆
strengthened structure结构加固
Strengthening backlash加强后坐
strengthening measures加固措施
strengthen and toughen强韧化
strengthening concrete劲性混凝土
strengthening with FRP粘FRP加固