女孩子们拿着桶和铲子在沙滩上快活地玩耍。The girls happily played in the sand with buckets and spades.铲子插入了一丛长势旺盛的灌木丛。The spade sank into a clump of overgrown bushes.他们带着桶和铲子在沙滩上玩。They were playing on the beach with their buckets and spades ...
患有肾脏疾病的人只能吃不含盐的食物.People with renal diseases have to eat salt - free foods.淡水的来源之一是使水淡化 -- 把含盐的水中的盐份去掉,使之能够饮用.One source is by desalination - taking the salt out of salt water to make it drinkable.当水位日趋下降的同时, 含盐的沉积物却持续堆积...
许多金属冶炼操作中需要碳作为还原剂.Carbon is needed as a reducing agent in many metallurgical operation.氧化铝的进口禁令严格限制生产能力在100,000吨以下的冶炼商.Alumina import bans have been exacted against smelters with capacity below mts.本文介绍了铝硅热法生产高钨铁的工艺研究情况,...