The strength and deflection of putlog as easy supporting girder, and the ledger is over and supported by putlog.
小横
按照简支梁进行强度和挠度计算，大横在小横
面。
The strength and deflection of putlog as easy supporting girder, and the ledger is over and supported by putlog.
小横按照简支梁进行强度和挠度计算，大横在小横面。
He cut a branch from a tree and made a whiffle-tree of it.
他砍了一
树枝，做了一拴挽带横。
声明：以
例
、词
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