The microorganisms involved in symbiosis with the alder tree are actinomycetes of the genus Frankia.而与赤杨共生的微生物是放线菌.Its name is Ben Alder , it is a wild , desert mountain full of hills and hollows.它的名字是本·亚尔德, 是一座尽是些山岗和鸡谷的...
Modification for synthetic purposes on the Diels - Alder adducts 56 and 62 has only rarely been considered.为了达到合成的目的,对Diels-Alder加 成物(56)和(62)加以改造的问题很少有人考虑.The meanders of a prattling brook, were shaded with straggling w...
This allowed Ms. Kelley to lay aside money to start her business.这样凯利女士就可以把钱存起来创业。Ms Senatorova showed an instinctive feel for market economics.谢纳托罗娃女士对市场经济学有一种天生的敏感。Ms Carey appeared to blame her breakdown on EMI's...
Station staff announced the arrival of the train over the tannoy.车站工作人员通过广播告知火车到站了。He called me over the Tannoy.他用天朗扩音器喊我。to make an announcement over the Tannoy通过天朗扩音系统发布通知...
Mesenchyme -- embryonic c . t . with multipotential cells . The stellate cells are beginning to form fibers.间充质 --- 胚胎时期结缔组织,含有多种分化潜能的细胞这种星形细胞可合成纤维....