We tried to grow some copper sulphate crystals with our children.我们想跟孩子们一起制作硫酸铜晶体。Adding sulphate to the solution will give a precipitate.将硫酸盐加入该溶液会产生沉淀.More ammonium sulphate solution is being recovered in the process o...
They could not move their heavy mortars over the swampy ground.他们无法把重型迫击炮移过那片沼泽地.Malaria is still rampant in some swampy regions.疟疾在一些沼泽地区仍很猖獗.An ox as grazing in a swampy meadow.一头牛在一块泥泞的草地上吃草....
一面小旗在微风中飘动.A small flag fluttered in the breeze.那些卡片好像许多面小旗点缀着教室.Those cards seemed like so many little flags dotted about schoolroom.我们的向导手里拿着一面小旗走在前面.Our guide walked ahead with a little flag in hand....
盐水的腐蚀作用the corrosive effects of salt water反渗透主要应用于生活用含盐水的脱盐.Principal application of reverse osmosis has been in desalting brackish waters for domestic consumption.在昌都地区澜沧江边往盐田背盐水的妇女.Tibetan women carrying brine to the o...
...a christening robe.受洗礼衣The day of the christening was sunny and bright.洗礼仪式的天是阳光充足的和明亮的.The ceremony was something like a christening.那个典礼有点像洗礼仪式.He asked Ginny if she would consent to a small celebration after the ch...