litmus

简明释义

英[ˈlɪtməs]美[ˈlɪtməs]

n. [试剂] 石蕊

英英释义

单词用法

同义词

反义词

例句

1.In Dr Nersesian’s titration the litmus was a species called the brushtail possum.

涅尔谢相博士的滴定实验中的“石蕊指示剂”是一种叫帚尾袋貂的动物。

2.To me it's a litmus test for people about who they are and how they perceive the world and how secure they are about themselves.

我只把这电影当作人们认清他们是谁，他们如何观察这个世界和他们如何看待他们自己的试金石。

3.The fifth view is more of a litmus test view.

第五种视图更多的是一种LitmusTest 视图。

4.The litmus test will be the us's willingness to abandon NATO expansion.

美国愿意放弃北约东扩将是试金石。

5.Obama was careful to say that he would impose no litmus test on potential nominees.

奥巴马谨慎的说他不会在潜在被提名人中进行试金石测试。

6.The candidate services that passed through litmus testing are detailed.

通过Litmus测试的候选服务会得到细化。

7.There's a great litmus test: can you, in one short, clear noun phrase, describe what an instance of the class represents?

这儿有一个很好的检验方法：你能否用一个简短的、明了的名词短语描述这个类的实例所代表的东西？

8.The success of wind power represents a litmus test for renewable energy.

风能利用的成功是对可再生能源的一次立见分晓的检验。

9.The success of the pilot program will be a litmus 试金石 for future funding decisions.

试点项目的成功将成为未来资金决策的litmus 试金石。

10.The new policy will serve as a litmus 试金石 for the company's commitment to sustainability.

这项新政策将作为公司对可持续发展承诺的litmus 试金石。

11.For many investors, a company's earnings report is a litmus 试金石 of its financial health.

对于许多投资者来说，一家公司的财报是其财务健康状况的litmus 试金石。

12.The environmental impact assessment serves as a litmus 试金石 for the project's feasibility.

环境影响评估作为该项目可行性的litmus 试金石。

13.In politics, public opinion polls often act as a litmus 试金石 for gauging voter sentiment.

在政治中，民意调查常常作为衡量选民情绪的litmus 试金石。

作文

In the world of science, especially in chemistry, the term litmus refers to a type of dye that is used to test the acidity or alkalinity of a solution. This simple yet effective indicator has been utilized for centuries, making it a fundamental tool in laboratories and classrooms alike. The significance of litmus extends beyond its chemical properties; it serves as a metaphor in various contexts, symbolizing a decisive test or criterion that can lead to a clear conclusion.To understand the role of litmus in both scientific and metaphorical terms, we must first explore its chemical background. Litmus is derived from lichens, which are symbiotic organisms made up of fungi and algae. The dye changes color when exposed to different pH levels: it turns red in acidic solutions and blue in alkaline ones. This property makes litmus an invaluable resource for chemists who need a quick and reliable way to assess the nature of a substance.However, the use of litmus goes beyond the confines of a laboratory. In everyday language, we often refer to a "litmus test" when discussing a situation that serves as a clear indicator of something else. For instance, in politics, a candidate's stance on environmental issues might be seen as a litmus test for their overall values and beliefs. Voters might use this issue to gauge whether a candidate aligns with their own views, thus making it a crucial factor in their decision-making process.Moreover, the concept of litmus tests can be applied in personal relationships as well. When we evaluate the compatibility of a friend or partner, certain behaviors or beliefs may act as litmus tests that reveal deeper aspects of their character. For example, how someone treats service staff can be a litmus test of their empathy and respect for others. These tests, while informal, can significantly influence our perceptions and choices regarding the people we surround ourselves with.The versatility of the term litmus demonstrates its importance in various fields. In education, teachers may use certain assessments as litmus tests to determine a student's understanding of a subject. A student’s performance on a particular assignment can indicate their grasp of the material, guiding the teacher's future instruction.In the business world, companies often undergo litmus tests to assess their market viability or the effectiveness of a new product. Consumer feedback can serve as a litmus test for potential success or failure, shaping the direction of marketing strategies and product development.In conclusion, the term litmus encompasses both a scientific tool and a broader metaphorical application. Whether in a laboratory setting or in everyday life, litmus serves as a vital indicator that helps us navigate complex situations and make informed decisions. Understanding the dual significance of litmus enriches our comprehension of both science and the human experience, reminding us that sometimes, simple tests can lead to profound insights.

在科学界，尤其是化学中，术语litmus指的是一种用于测试溶液酸碱度的染料。这种简单而有效的指示剂已经被使用了几个世纪，使其成为实验室和教室中的基本工具。litmus的意义超越了其化学性质；它在各种背景下作为隐喻，象征着一个决定性的测试或标准，可以得出明确的结论。为了理解litmus在科学和隐喻方面的作用，我们首先必须探讨其化学背景。litmus来源于地衣，地衣是一种由真菌和藻类组成的共生生物。当暴露于不同的pH水平时，这种染料会改变颜色：在酸性溶液中变红，在碱性溶液中变蓝。这一特性使得litmus成为化学家们评估物质性质的宝贵资源。然而，litmus的使用超出了实验室的范围。在日常语言中，我们常常提到“litmus测试”，当讨论某种情况时，它作为其他事物的明确指示。例如，在政治中，候选人对环境问题的立场可能被视为他们整体价值观和信仰的litmus测试。选民可能会利用这一问题来判断候选人与自己观点的一致性，从而使其成为决策过程中的关键因素。此外，litmus测试的概念也可以应用于个人关系。当我们评估朋友或伴侣的兼容性时，某些行为或信仰可能充当litmus测试，揭示他们性格的更深层次。例如，一个人对待服务人员的态度可以是他们同情心和对他人尊重的litmus测试。这些测试虽然非正式，但可以显著影响我们对周围人选择的看法。litmus一词的多功能性展示了其在各个领域的重要性。在教育中，教师可能会使用某些评估作为litmus测试，以确定学生对某一主题的理解程度。学生在特定作业上的表现可以表明他们对材料的掌握，从而指导教师未来的教学。在商业世界中，公司通常会进行litmus测试，以评估其市场可行性或新产品的有效性。消费者反馈可以作为潜在成功或失败的litmus测试，塑造营销策略和产品开发的方向。总之，术语litmus涵盖了科学工具和更广泛的隐喻应用。无论是在实验室环境中还是在日常生活中，litmus都作为一个重要的指示器，帮助我们驾驭复杂的情况并做出明智的决策。理解litmus的双重意义丰富了我们对科学和人类经验的理解，提醒我们有时简单的测试可以带来深刻的洞察。