他们把黑土掺上沙子.They mixed the sand with the black clay.当表层黑土全部被冲走之后, 农民们就向西部转移,建立新的种植园.When the black topsoil was all washed away, farmers moved westward and started new plantations.洋葱以及稻米生长在三角洲附近的黑土里.Onions and rice grow in ...
它由一对同轴的圆筒组成.It consists of a pair of concentric cylinder.本文叙述了宽带同轴终端负载的设计方法.This paper describes the design method of broad band coaxial termination load.功率响应一致, 同轴和离轴变化更为平稳.Power response is uniform, with smoother varia...
As a result , many Himalayan, Hindu Kush and Karakoram glaciers are dwindling.所以喜马拉雅山 、 兴都库什山和喀喇昆仑山的许多冰川都在逐渐萎缩.And yesterday the Zoo's fate was sealed, largely due to two months of ever-dwindling entrance figures.昨日...