更新时间:2024-03-26 09:14作者:小编
rarefaction [ˌrɛərəˈfækʃən]
复数形式:rarefactions
意思:1. 稀疏;稀薄;2. 减少;缩小;3. 稀释
1. rarefaction常用来形容物质的密度变小,或者某种状态下的减少。也可以用来指代某种情况下的稀疏程度。
2. 在科学领域,rarefaction也常被用来描述气体分子的稀薄程度,比如在高空中,气压会变得很低,气体分子会变得更为稀疏。
3. 在数学和物理学中,rarefaction还有一个专门的概念,指的是波在介质中传播时密度变小的过程。
1. The rarefaction of air at high altitudes makes it difficult for humans to breathe.
2. The rarefaction of the population in the countryside is a common phenomenon in many developed countries.
3. The scientist used a special instrument to measure the rarefaction of the gas in the chamber.
科学家使用了一种特殊仪器来测量室内气体的稀薄程度。
怎么读(音标):[ˌrɛərəˈfækʃən]
例句:
1. The rarefaction of resources in this area has led to many social problems.
2. The rarefaction of the population has caused a decline in economic growth.
3. The rarefaction of air can make it difficult for airplanes to fly at high altitudes.
同义词及用法:
1. Thinning:指物质变得稀薄或者数量减少,常用来形容液体、气体等。:The thinning of the ice sheet is a worrying sign of global warming. (冰层的减少是全球变暖令人担忧的迹象。)
2. Dilution:指液体被稀释后变得更为稀薄,也可以指某种物质被添加到其他物质中而使其浓度降低。:The dilution of the chemical solution reduced its strength. (对化学溶液进行了稀释后,其强度降低了。)
3. Reduction:指数量、程度或者大小的减少。:The reduction in staff has led to a decline in productivity. (员工的减少导致了生产力的下降。)
rarefaction是一个多义词,可以指物质的稀疏程度、数量的减少以及液体或气体被稀释后变得更为稀薄。它常被用来描述自然现象、社会现象以及科学概念,是一个比较常用且灵活的词汇。在使用时,需要根据具体语境来确定其意思,并注意与同义词的区别。