The other options simply complicate the situation and could land him with more expense.其他办法只会使情况复杂化，而且可能给他带来更大花销。Stemming is not advisable because it can sinter and complicate later charging.不宜堵塞炮泥,因为万一炮泥烧结堵死就会使以后的装药工作很麻...
The celt survival rate was higher in cryoprotectant containing K - SFM than DMEM.以K-SFM培养液配制的冻存液冻存的细胞复苏后的存活率明显高于以DMEM配制 的培养液.This new centre is one of 74 HEFCE - funded Centers for Teaching and learning ( CELT ) .这个新的教学中...
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...