The contents of camphor, mentholum, isoborneol and borneol in Guanxingao are determined by gas chromatography.用气相色谱法测定了冠心膏中樟脑 、 薄荷脑 、 异龙脑和龙脑的含量.Objective : To establish a Capillary GC method for the determination of Isob...
Boylan plays with language, letting the prose sprawl about before tightening it suddenly to great effect.博伊兰随心所欲地驾驭着语言，先是任文章自由铺展，然后猛地收住，产生了绝好的效果。Brad was being purposely bumpkinish reacting unfavorably to Boylan's m...
A new dispersing agent ( WPJ - A ) for 38 % atrazine suspension concentrates was developed.研制了用于38%莠去津悬浮剂的新型分散剂 ( WPJ-A ) .The soil microbial biomass was not significantly affected by atrazine and butachlor at the same d...
His plane made a crash-landing during a sandstorm yesterday.昨天他的飞机在沙尘暴中紧急降落。The men lost their way in a sandstorm.这些士兵在沙暴中迷了路。To keep your bearings in a desert sandstorm is impossible.在沙漠的尘暴中要想保持方位感是不可能的....
Insects would make it impossible for us to live in the world; they would devour all our crops and kill our flocks and herds , if it were not for the protection we get from insect - eating animals.昆虫会使我们无法在这个世界上生存: 如果不是由于...