...the protection of mankind against the forces of nature: epidemics, predators, floods, hurricanes...保护人类抵御自然力——传染病、食肉动物、洪水和飓风During the annual floods the river deposits its silt on the fields.每年河水泛滥时都会在田野上沉积一层淤泥.Foreca...
三氟丙炔和全氟丁烯 -2 在这个区域也出现双重谱带.Duplication of bands in this region is also shown by trifluoropropyne and perfluoro 2 - butene.三氟丙炔和全氟丁烯 -2 在这个区域也出现双重谱带.Duplication of bands in this region also shown by trifluoropropyne and pe...
The manatees tamed quickly.海牛很快地被驯服.Gentle and slow moving, manatees are said to be the mythical mermaids of sailors'imaginations.海牛游动温和而缓慢, 被认为是海员遐想中富有神秘色彩的美人鱼.I pushed on through the shoal water , but now the mana...
All cells are attached to the basal lamina, but some do not reach the surface.全部细胞都附着到基板, 而有些细胞,不到达表面.After a week, original and hale strong lamina gradually atrophic and shrivelled.一星期后, 本来健壮有力的叶片逐渐萎缩干瘪.Results The nucl...
The paper studied ferment condition of Claviceps paspali to producing ergot alkali.研究了雀稗麦角菌产麦角碱发酵条件.Ergot A fungal disease of many cereals.麦角菌:是许多谷类农作物感染的一种真菌病....
He said that all the other boys were regular gipsies.他说别的男孩全是道地的吉卜赛人.They have stolen people's airs as they sometimes stole their children and made gipsies of them.他们剽窃别人的曲调,正象有时诱拐别人的孩子那样,把他们变成了吉普赛人." Were there gip...