【判断题】螺纹代号 M24 L H-6g-L的含义: M24LH-6g-L 表示公称直径为24mm 的细牙普通螺纹,左旋,外螺纹中径和 顶径公差带代号 6g,长旋合。
【简答题】解释下列螺纹标记的意义 (1)M24LH-5H-S (2)M20X1.5-5g6g (3)Tr32X6LH-7H (4)B40X14(P7)-8e-L
【单选题】— ____________________ — I have two books. [ ]
A.
How many books do you have?
【简答题】已知螺纹的标记为 M24LH-6g ,则此螺纹为( ) 螺纹,公称直径为( ) , 旋向( )。
【判断题】I have two leaves.()
【单选题】I have two novels: one of the two is “Gone with the Wind’, and ______ is “the Tale of Two Cities’.