The determination of tetramine and fluoroacetamide using GC - MS method unknown sample was discribed in this paper.本文采用GC -MS 法测定杀鼠剂产品中是否含有毒鼠强及氟乙酰胺,其方法准确、迅速、可操作性强.Objective To study clinical the clinical date of manifest...
某些种类的动植物不能适应迅速变化的环境。Some animal and plant species cannot accommodate to the rapidly changing cond-itions.这个岛屿拥有丰富多样的景致及种类繁多的野生动植物。The island offers such a wide variety of scenery and wildlife.现在可以买到许许多多不同种类的蘑菇。There are ...
在一定条件下，电子可以作波状运动，而不是粒子状运动。Under certain conditions, electrons can behave like waves rather than particles.她那浓密的波状的头发飘垂在肩上.Her thick wary hair flowed over her shoulders.波状的或以波浪式运动的; 起伏不平的.Marked by or moving in a wavelike...