stiffyn.勃起stiffadj.硬的；僵直的；艰难的；生硬的；拘谨的；烈性的adv.极其；僵硬地n.死尸；流浪汉；过于拘谨的人；吝啬鬼；醉鬼stiff lumbar vertebra腰脊强stiffness sensitivity刚度可靠性灵敏度stiffness calculation刚度计算stiff varnished paper坚硬釉光纸stiff-plastic making低水分料成型stiffness degeneration刚度退化stiff and locked wrist腕部紧张stiff soil-aquiclude硬土隔水层stiffness and strength刚强度stiffness of structure结构的劲度

1. The shingles of the roof lapped over neatly.
   屋顶板重叠得很整齐。
2. Scaling can be safely carried out from inside the cage through the roof.
   可以在罐笼里边通过其顶板安全地进行找项工作。