In 1970 the average size of a French farm was 19 hectares.1970年，法国农场的平均规模为19公顷。Thousands of hectares of forest are destroyed each year.每年都有几千公顷的森林遭到破坏。There sugar - beet plantation areas were expanded to 176000 hectares....
More than 170 hectares were afforested, reducing water runoff from the hillsides.超过170公顷的土地已植有林木, 以减少雨水从山坡流下.There sugar-beet plantation areas were expanded to 176000 hectares.他们的甜菜种植面积增加到176000公顷。In 1970 the average siz...
Mother has a light blue silk cheongsam, it is very beautiful.妈妈有一件淡蓝色的绢绸旗袍, 特别漂亮!The Chinese cheongsam shows the style and features of traditional clothing.中国旗袍展现传统服装的风貌.She wore a white cheongsam, it was very charming.她...
HPLC method was established for the determination of chlorpheniramine maleate tablets.建立了HPLC法测定马来酸氯苯那敏片含量.Objective To establish a method for the determination of chlorpheniramine maleate in Zhiganjia capsules by HPLC.目...