There are bright prospects for freshwater fish farming.淡水养鱼大有可为.Both marine and freshwater fisheries are beset by a number of very serious human impacts.无论海洋渔业还是淡水渔业,都为人类造成的一系列严重影响所困扰.Limnology The scientific study of fr...
The perch is a freshwater fish.鲈鱼是淡水鱼。Coal is formed from the remains of freshwater plants.煤是由淡水植物遗骸形成的.There are bright prospects for freshwater fish farming.淡水养鱼大有可为....
我不喜欢匆匆地用早餐, 我愿意从容不迫.I can't enjoy a hurried breakfast; I like to take my time over it.醒醒! 你们都该起来了——五分钟后用早餐.Show a leg! It's time you were all up and about — breakfast is in five minutes'time.亚历克斯在寓所内一边用早餐,...
Differential scanning calorimeter ( DSC ) showed NPN had high T _ g ( 129.7℃ ) and T _ m ( 245.7℃ ).差热扫描法(DSC ) 测定其玻璃化温度 ( Tg ) 高达129.7℃,熔点达 245.7 ℃.Oxygen bomb calorimeter was used to determine calorific value of vinass...
He was sitting at the other end of the table, tight-lipped and angry.他坐在桌子的另一头，双唇紧闭，满面怒容。Her tight - lipped friend had kept it a secret.她那守口如瓶的朋友对这事一直保密.Military officials are still tight-lipped about when or whether the...