Raws li cov khoom siv engineering uas tuaj yeem txhim kho qhov project zoo, txhim kho kev tsim kho, txo cov nqi tsim kho thiab ncua lub sijhawm tu, geotextiles tau siv dav hauv ntau yam xws li kev loj, kev tsheb ciav hlau, kev txuag dej thiab chaw nres nkoj, tab sis geotextiles tau muab tso thiab sib tshooj. detai...
Nyeem ntxiv