concentrations
1. 名词
[不可数名词] 1. 浓度;浓度级别 2. 专注;集中 3. 聚集;聚集体 4. 专业;学科 [可数名词] 1. 浓度;浓度值 2. 专门学习的课程2. 形容词
1. 专攻的;集中的 2. 浓缩的;浓度高的3. 词语辨析
- concentration(名词):指物质或思想的密集程度或聚集程度。 - focus(名词):指注意力或兴趣的集中。 - specialty(名词):指某个领域或专科的专门知识。 - major(名词):指在大学期间所选择的主修学科。4. 词汇扩充
- concentrate(动词):集中;全神贯注 - concentrated(形容词):浓缩的;集中的 - concentration camp:集中营 - concentration gradient:浓度梯度5. 近义词
- density - thickness - strength - intensity6. 反义词
- dispersal - diffusion - dilution7. Collins 词典
[uncountable noun] 1. 浓度 2. 专注 3. 专业;学科;专修 4. 聚集;聚集体 [countable noun] 1. 浓度;浓度值 2. 专修课程8. Oxford 词典
[uncountable noun] 1. 浓度;浓缩 2. 专注;专心 3. 专业 [countable noun] 1. 浓度 2. 专修课程9. 用法
- The concentrations of pollutants in the river have reached dangerous levels. (名词) - She struggled to maintain her concentration during the long lecture. (名词) - The chemistry major requires a high concentration of math courses. (名词) - The concentrated solution should be handled with care. (形容词)10. 相关例句
- The concentration of oxygen in the atmosphere is decreasing. (空气中的氧气浓度在降低。)
- She has trouble maintaining concentration when studying. (她在学习时很难保持专注。)
- The concentration of power in the hands of a few individuals is a concern. (权力集中在少数人手中是一个问题。)
- High concentrations of mercury were found in the fish. (鱼类中发现了高浓度的汞。)
- He decided to major in economics at university. (他决定在大学主修经济学。)
- She chose to specialize in neurology. (她选择专攻神经学。)
- During the exam, he was able to stay focused and concentrate on each question. (在考试期间,他能够保持专注并集中精力答题。)
- The concentrated fruit juice needs to be diluted before drinking. (浓缩果汁在饮用前需要稀释。)
- The concentration camp was a place of great suffering during the war. (集中营是战争期间的一个苦难之地。)
- The concentration gradient affects the movement of molecules across the cell membrane. (浓度梯度影响着分子在细胞膜上的运动。)
- She enrolled in a concentration of graphic design courses. (她报名参加了一系列平面设计课程。)
- He demonstrated a high degree of concentration in his playing. (他在演奏中表现出高度的专注。)
- The concentration of wealth in the hands of a few is a problem in our society. (财富的集中在少数人手中是我们社会的一个问题。)
- The chemist measured the concentration of the solution using a spectrophotometer. (化学家使用分光光度计测量了溶液的浓度。)
- She took a concentration in literature during her undergraduate studies. (她在本科学习期间专攻文学。)
- His concentration on the task at hand was evident in his focused expression. (他对手头任务的专注在他专注的表情中表现得很明显。)
- The concentration of students in the library increased during exam week. (在考试周,图书馆里的学生集中度增加了。)
- The concentration of power in the hands of a single leader can lead to abuses of authority. (权力集中在一个领导者手中可能导致滥用职权。)
- I need complete concentration to solve this complex problem. (我需要全神贯注才能解决这个复杂的问题。)
- He has a concentration of talent in the field of mathematics. (他在数学领域有才华的集中。)
- The concentration of carbon dioxide in the atmosphere has reached alarming levels. (大气中二氧化碳的浓度已达到警戒水平。)