發送短信 : Properties of binder-bentonite-sand for construction of seepage cut-off walls

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| |  | ||  /_   _//  / ____||   / _ \\   /  ___|| 
| |/\| ||   -| ||-  / //---`'  / //\ \\ | // __   
|  /\  ||   _| ||_  \ \\___   |  ___  ||| \\_\ || 
|_// \_||  /_____//  \_____|| |_||  |_|| \____//  
`-`   `-`  `-----`    `----`  `-`   `-`   `---`