sand shell moulding 砂型铸造
Sand Shell 沙贝利 ; 砂壳
sand-shell 砂壳
sand-shell dam 砂壳坝
loose sand shell 松散砂壳
The main dam of Qingfengling reservoir is designed as core shell sand dam, and some problems caused by construction material exist here.
青峰岭水库主坝为宽心墙砂壳坝,存在着由于筑坝材料引起的坝体质量问题。
Allow your disappointment to form a pearl just as an oyster does when an irritating grain of sand gets inside its shell, but grab the pearl before the sand gets in your eyes.
把你的失望孕育成一枚珍珠,就像牡蛎对待一颗落入壳中的沙砾一样,但要在沙砾进入你的眼睛前抓紧珍珠。
贝壳放在沙子上面。
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