硅鋅礦 的英文怎麼說
中文拼音 [guīxīnkuàng]
硅鋅礦
英文
belgite-
Tin ore, copper, zinc mine, iron ore, snake bite mine, silica, sand and gravel sales
錫礦、銅礦、鋅礦、鐵礦、蛇紋礦、硅石、砂石購銷。The ministry of finance and the state administration of taxation jointly determined to adjust export refund rates of the following products as of 1 may 2005 : ( 1 ) export refund rates of coal, tungsten, tin, antimony and their products decreased to 8 % ; ( 2 ) abolishing of the export refund tax of thulium, thulium oxide, salts of lanthanum, silicon metal, molybdenum ores and its fine ores etc
中國財政部、國家稅務總局決定自2005年5月1日起調整下列產品的出口退稅率: ( 1 )將煤炭,鎢、錫、鋅、銻及其製品的出口退稅率下調為8 % ; ( 2 )取消稀土金屬、稀土氧化物、稀土鹽類,金屬硅,鉬礦砂及其精礦,輕重燒鎂,氟石、滑石、碳化硅,木粒、木粉、木片的出口退稅政策。The methods for chemical analysis of lead and zinc bulk concentrates - the determination of silicon dioxide content - the molybdenum blue spectrophotometric method
混合鉛鋅精礦化學分析方法.二氧化硅量的測定.鉬藍分光光度法
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