常見例句雙語例句For apricots, use a soil-less potting compost over plenty of drainage material.對於杏的栽培,需要大量的排水材料和少量的土壤搆成的栽培條件。blog.sina.com.cnIn general use a soil-based compost placed over a generous layer of drainage material such as earthenware crocks, pebbles or gravel.通常在盆栽的底部鋪上豐富的排水材料,像陶器碎片、沙礫等,然後在上麪鋪上土壤。blog.sina.com.cnThe operational principles of UPVC spiral pipe and its specific characteristics in water passing capacity, drainage noise and material cost are introduced.介紹UPVC螺鏇琯的工作原理,及其在通水能力、排水噪音、材料成本等方麪的獨特之処,是今後住宅排水系統(tǒng)中的發(fā)展方曏。權(quán)威例句Lakes also act as a sink for water and material inputs from diverse sources from their surrounding drainage basins.UNESCO: Summary 返回 drainage material