土壤的酸性可以通过在它上面撒石灰来中和.Acidity in soil can be neutralized by spreading lime on it.土壤里的石灰对某些植物有害.Lime in the soil is detrimental to some plants.许多土壤中都含有石灰.Lime exists in many soils....
阿曼达耍手段在市政部门给罗宾找了份差事。Amanda had wangled a job for Robyn with the council.他在一艘大型游轮上找了个歌手的差事。He got a job as a singer on a cruise ship.照顾孩子于她是一件不得空闲的苦差事。The way she did it, mothering was a full-time job....
Diethylstilbestrol ( DES ), is a kind of nonsteroid synthesized estrogen.己烯雌酚 ( diethylstilbestrol,DES ), 是一种非甾体类雌激素.Objective To induce hypospadias in rats by diethylstilbestrol ( DES ).目的 尝试用己烯雌酚 ( DES ) 建立尿道下裂大鼠模型.Obj...
本文用光学方法实现了图象等密度假彩色编码.An optical method of pseudocolor equidensity encoding of photographic image is described.如骨等密度较高的组织能吸收更多的X射线,所以在 X 光片上显示出来的是较淡的区域.Denser tissues, as Bones, absorb more X rays and show as lighter area...