流入湖中的泉水和河水携带了溶于水的硝酸盐和磷酸盐。Springs and rivers that drain into lakes carry dissolved nitrates and phosphates.硝酸盐是水和土壤中自然存在的化学物质。Nitrates are chemicals that occur naturally in water and the soil.硝酸盐由土壤渗入江河。Nitrates leach fro...
They were charged with failing to have professional indemnity cover.他们被指控未能提供职业保险保障。They paid an indemnity to the victim after the accident.他们在事故后向受害者付了赔偿金.Under this treaty, they were to pay an indemnity for five millio...
镁铝尖晶石的合成方法有电熔法和烧结法.The synthesis methods of magnesia - alumina spinel are electro - fusion and sintering process.含尖晶石的耐火材料广泛应用于冶金行业.Spinel containing refractories are widely used in metallurgical industry.浇注料的抗渣性与镁砂含量和尖晶...
为确定恰当的普查方法,人们建议踏勘性普查.Orientation survey to establish the most suitable search techniques are recommended.空中测取水面热图是踏勘性研究的一种快速方法.Thermal mapping of the water surface from the air is a fast method for reconnaissance studies...
The Endo - conversion 、 Exo - yield andExo - selectivity are 96.46 % 、93.12 % and 96.54 % respectively.Endo -THDCPD 转化率为96.46%,Exo -THDCPD 收率为93.12%,选择性为96.54%.EAD was much more readily induced in Mid than in Epi and End...