大量碳氢化合物如苯并芘也是诱变剂.A large number of hydrocarbons such as benzopyrene are also mutagenic.建立了粮食中苯并芘残留的高效液相色谱测定法.This thesis developed a HPLC method for determination of benzo a pyrene in grain.建立了肉类食品中苯并芘残留的高效液相色谱测定法.This t...
In 1964, Yuan Longping started his research of hybrid rice.1964年, 袁隆平开始致力于杂交水稻的研究.Dr Yuan Longping grows what is called super hybrid rice.袁博士种植的是被称为“超级杂交水稻”的稻种.It is suitable for transplantation of individual hybrid rice...
Be sure you get your daily quota of calcium.要确保每天的钙摄入量。Calcium may aid in the prevention of colon cancer.钙可能有助于预防结肠癌。Milk products are an excellent source of calcium and protein.奶制品富含钙与蛋白质。...
野营地一般都位于海滨,靠近沙滩。Camp sites are usually situated along the coast, close to beaches.露营被限制在指定的5个野营地。Camping is restricted to five designated campgrounds.野营地有其自身独特的魅力。The wilderness campsite had its own peculiar enchantment....