Results In normal fetus, the urorectal septum ( URS ) descended, its distance to cloacal membrane decreased gradually. 结果 泄殖腔发育过程中,胎龄15d前 的正常鼠胚, 尿直肠隔将 泄殖腔 分为腹侧的尿生殖窦和背侧的直肠两部分, 二者共同相通于泄殖腔管.
甘露''.'聚糖'.''任何一组属于甘露糖聚合物的植物''.'聚糖'. ''.Any of a group of plant polysaccharides that are polymers of mannose.葡萄糖氧化酶的多醣构造中,含有N - 乙醯胺基葡萄糖及甘露糖.The polysaccharide mo...
He gave his imitation of Queen Elizabeth's royal wave.他模仿伊丽莎白女王挥手致意。It's not real leather; it's only an imitation.那不是真皮, 只不过是仿制品.Young children learn how to speak by imitation.儿童通过模仿学说话....
有机食品是未使用人工化学制剂和杀虫剂的纯净食品。Organic food is unadulterated food produced without artificial chemicals or pesticides.《牛津化学初级读本》丛书旨在论述有机化学中的重要问题。The Oxford Chemistry Primers aim to cover important topics in organic chemistry.硝酸...