To investigate the exocrine compounds of coptotermes formosanus dinergate exocrine concentrate was obtained by different extraction. 本文主要讨论采用不同提取方法所得家白蚁兵蚁的外分泌化合物的组成及相对含量的变化.
他有一双深陷的褐色眼睛。He had deep-set brown eyes.他长着窄长的鹰钩鼻和深陷的褐色眼睛。He had a thin aquiline nose and deep-set brown eyes.我瞧得出她那目眶深陷的两眼正盯着我.I could see her hollow eyes fixed upon me....
By happy coincidence, Robert met Richard and Julia and discovered they were experiencing similar problems.幸运的是，罗伯特碰巧遇到了理查德和朱莉娅，发现原来他们也碰到了类似的问题。The economy is experiencing an upturn.经济正在好转。Many poor households are experie...
Structural changes of dental enamel , dentine, cementum and pulpal reactions in carious process are discussed.其中,釉质龋的研究资料最为丰富, 其次是牙本质, 有关牙骨质龋的资料最少.Suitable for cutting metal , such as structural steel refractory steel, c...