We experimented with diesel engines to drive the pumps.我们试着用柴油机来带动水泵.He experimented in painting at home.他在家中试着作画.They experimented with a new material.他们用新材料来做试验....
摘要制浆与造纸厂排放之废水经常含有色质,最常见的是木质素碎片形成发色团,使废水呈现黄褐色;制造色纸也常有残留染料使废水呈色.Pulp and paper mills emit effluents that are often tainted with color substances.结果: 蛋白质通过静电引力和范德华力以及π电子同发色团相互作用.Results: The protein and the chromophore of l...
The pesticidal and bactericidal effects of ginkgolic acid extracted from Ginkgo exocarp was studied.从银杏外种皮中提取的银杏酚酸和白果酚有杀虫、杀菌作用.The change of fruit anatomical structure shows cell of exocarp, sarcocarp and endocarp divisi...