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- Selective concentrate your mind ( like focus on some specific issues). 选择性地集中精力(如:把精力集中在某些具体问题上)。
- The best selective concentration of kanamycin (kan) was 15 mg L-1. The con centration of carbencillin (carb) was 500 mg L-1. 14 transgenic cauliflower pla nts were obtained. 卡那霉素(Kanamycin,简称Kan)的筛选浓度为15mg/L,抑制农杆菌生长的抗生素选用羧苄青霉素(Carbencillin,简称Carb),浓度为500mg/L。
- It's too hot to concentrate on book. 热得不能集中心思看书。
- I must concentrate my energies on decorating today. 我今天必须集中精力搞装饰。
- I can't concentrate on my work when I'm tired. 我累了就无法集中精力工作。
- In selecting concentration courses, students are advised to consult with the Chair of the Management Department. 选择选修课程时,学员需向管理部主任咨询。
- It selects concentrated sulphuric acid hydrolysis, oxidation of potassium dichromate peanut shell in cellulose. 通过分析，选用浓硫酸水解，重铬酸钾氧化测定花生壳中纤维素；
- Don't put me off when I'm trying to concentrate. 我正要集中注意力呢，别打搅我。
- We must concentrate our attention on efficiency. 我们必须把注意力集中在效率上。
- She helped to select a dress for Ruth. 她帮着给露丝选了一件衣裳。
- She couldn't concentrate on a book very long. 她不能长时间专心读一本书。
- She is selective in the dresses she wears. 她对于自己穿的衣服精挑细选。
- I must concentrate upon my work now. 我现在必须集中精力工作。
- She only stays at select hotels. 她只住一流旅馆。
- Birds concentrate (in places) where food is abundant. 鸟聚集在食物丰盛的地方。
- Can student willfully select the course? 学生可以随意选择课程吗？
- She felt ill. She went to work, however, and tried to concentrate. 她病了。然而她照旧去上班，并且尽力集中精神工作。
- A select group were invited to the wedding reception. 一群经过挑选的人士被邀请参加婚宴。
- We must concentrate our efforts on improving education. 我们必须致力於改进教育工作。
- I'm very selective about the people I associate with. 我与他人来往极慎重，不滥交。
