Occasionally he made a humorously sardonic remark.他时不时说一句幽默嘲讽的话。She gave him a sardonic smile.她朝他讥讽地笑了一笑." I'm not being silly,'she replied with a sardonic laugh.她冷笑道: “ 我才不胡说呢....
She gave him a sardonic smile.她朝他讥讽地笑了一笑.She watched us with a sardonic eye as we stepped from the brougham.她用一种蔑视的眼光瞧着我们从四轮马车里下来." I'm not being silly,'she replied with a sardonic laugh.她冷笑道: “ 我才不胡说呢....a big...
很多生物体中雄配子与雌配子是不同的.In many organisms the male and female gametes are different.雄配子不能与雌配子结合.The male gamete could not unite with the female.花粉是种子植物的雄配子体, 在有性繁殖中发挥著重要作用.Pollen is the male - gamete of seed plant, which plays...
Through the separation, lignosulfonate with narrow molecular weight distribution was obtained and then chemically modified.木质素磺酸盐是一种常见的普通减水剂, 其分子量分布较宽,从而影响减水剂性能.The graft mechanism of lignosulfonate and acrylic acid was ...