Nitrates造句
Nitrates are chemicals that occur naturally in water and the soil.
硝酸盐是水和土壤中自然存在的化学物质。
Nitrates leach from the soil into rivers.
硝酸盐由土壤渗入江河。
Nitrates are used as preservatives in food manufacture...
硝酸盐在食品加工业中被用作防腐剂。
Springs and rivers that drain into lakes carry dissolved
nitrates and phosphates.
流入湖中的泉水和河水携带了溶于水的硝酸盐和磷酸盐。
permissible levels of
nitrates in water
水中硝酸盐含量的容许度
German synthetic
nitrates knocked out Chilean nitrate mining after 1920.
1920年以后,德国合成硝酸盐给了智利硝石开采当头一棒.