The pith of this stemlike stele appears rather strongly like collenchyma tissue.茎状中柱的髓显得颇强健,像厚角组织.Collenchyma cells have thick walls that are especially developed at the corners of the cell.厚角组织细胞尤其在细胞的各个角上具有厚壁....
如不努力工作, 你就一事无成.If you don't work hard, you'll end up nowhere.她抱怨他工作不努力.She complained that he did not work hard.如果你不努力争取,你就得赔偿.Unless you push your claims you'll get no satisfaction....
In this book we also discuss nonlasing heterojunction diodes.本书也讨论了非激光型的异质结发光二极管.At this time , the field of semiconductor lasers is dominated by heterojunction devices.目前, 在半导体激光器领域中,异质结激光器已占居支配地位.His Ph . D . dissertat...