On his desk is a mass of books and papers.他的书桌上有大堆的书籍和文件。In the spring, the meadow is a mass of daffodils.春天,草地上开满了黄水仙。Only with mass direct action will we obtain such change.只有采取大规模直接行动,我们才会取得这样的改变。...
孢于在生殖过程中形成类脂膜.Spores form a lipid membrane during the process of reproducing.这个数值包括类脂物成份在内,但不包括细胞间粒接剂.This figure includes the liquid component but excludes the intercellular cement.溶血磷脂在植物类脂提取物中常看到.Lysophospholipids are...