Swamp vegetation represent the early stages of a HYDROSERE or HALOSERE.例如湖区边界、河流漫滩或者是干旱地区具有保水粘土的地段.The chloroplasts in the swamp reed were round - shaped with poorly developed grana.芦苇是一种多年生水生草本植物,其典型生境是淡水或含盐的沼泽、河边或湖边.Th...
In the swamp the army was beset by mosquitoes.在沼泽地,该军受到蚊子的困扰.The fort flanked on a swamp.堡垒侧面靠着沼泽地.This is a crocodile - infested swamp.这是一片鳄鱼聚居的沼泽地....
He is very sceptical about the value of rote learning...他非常怀疑死记硬背是否有用。She copied her teacher by rote.她机械地模仿她的老师.He is very sceptical about the value of rote learning.他非常怀疑死记硬背是否有用。You are merely reciting facts that you h...
We could now very plainly hear their heavy tread.我们现在可以非常清楚地听到他们沉重的脚步声。The fat, broad tyres had a good depth of tread.这种宽大的轮胎有很深的胎面花纹。Martin is inclined to rush in where angels fear to tread.马丁总是喜欢贸然行事。...
目的构建β淀粉样前体蛋白裂解酶 ( BACE ) 特异性小干扰RNA真核表达载体.Objective To construct eukaryotic expression vector of siRNA specific for � � - site APP cleaving enzyme ( BACE ).褐藻胶裂解酶能裂解褐藻胶制备寡糖, 是一种重要的工具酶.Alginate lyase can degrade alginates ...