It was surprising when the alkali spectra showed unmistakable doublets.当碱金属光谱显示出不容怀疑的双线结构时,是令人惊奇的.The envelope is called a double of doublets.这种峰叫做双合双重线....
The piece goods are to be wrapped in kraft paper, then packed in wooden cases.布匹在装入木箱以前要用牛皮纸包好.Packing: kraft bag liner, carton or as each customer's requirements.包装: 牛皮纸复合袋, 纸箱或根据客户的具体要求.Optimum conditions of kraft...
60 percent of the respondents said they disapproved of the president's performance.60％的调查对象表示不认可总统的表现。Three product packages were offered in the research and respondents asked a series of questions.在调查中指出三种成套产品并向被调查...