flask

简明释义

英[flɑːsk]美[flæsk]

n. [分化] 烧瓶；长颈瓶，细颈瓶；酒瓶，携带瓶

复 数 f l a s k s

英英释义

单词用法

同义词

反义词

例句

1.Another potential deterrent was that the flask had been damaged and later restored.

另一个潜在的不利因素是这个花瓶曾遭损害后经修复。

2.She had a habit of taking an occasional nip from a flask of cognac.

她有一个偶尔就着瓶子喝一小口法国白兰地的习惯。

3.That is an Erlenmeyer flask that has been filled with chlorine, and sodium has been added to it.

那是装了氯气的锥心烧瓶，里面加了钠。

4.In the morning, Katarina's father gave me a flask of 1978-vintage brandy, and I walked into the chilly rain.

第二天早上，凯塔琳娜的父亲给了我一瓶1978年产的白兰地，然后我走进了冰冷的雨中。

5.In the morning, Katarina's father gave me a flask of 1978-vintage brandy, and I walked into the chilly rain.

第二天早上，凯塔琳娜的父亲给了我一瓶1978年产的白兰地，然后我走进了冰冷的雨中。

6.In other words, it's a hip flask.

换句话说，就一时髦玩意。

7."You can only do so much in a flask, and the mix of species would be much greater in a natural environment, " Jones pointed out.

“培养瓶中的实验差不多只能做到这个程度，自然条件下共生的物种数量要大得多。”琼斯指出。

8.She filled her flask with hot coffee for the hike.

她为远足装满了热咖啡的保温瓶。

9.He took a flask of water to the gym.

他带了一瓶水去健身房的水壶。

10.The scientist used a flask to mix the chemicals safely.

科学家使用一个烧瓶安全地混合化学品。

11.I always carry a stainless steel flask when I travel.

我旅行时总是带着一个不锈钢的水壶。

12.The flask in his hand was filled with whiskey.

他手中的酒壶装满了威士忌。

作文

In the world of science, various tools and instruments are essential for conducting experiments and making discoveries. One such tool that has been a staple in laboratories for centuries is the flask. A flask is a container, typically made of glass or plastic, used to hold liquids. It comes in various shapes and sizes, each designed for specific purposes. The most common types of flasks include the Erlenmeyer flask, volumetric flask, and round-bottom flask. Each type serves a unique function in the laboratory setting. The Erlenmeyer flask is perhaps the most recognizable. Its conical shape allows for easy mixing of solutions without the risk of spilling. This design makes it ideal for titration experiments, where precise measurements and mixing are crucial. In a typical chemistry class, students often use an Erlenmeyer flask to combine different chemicals and observe reactions. The ability to swirl the contents without worrying about spills is one of the reasons this flask is so popular among budding scientists. Another important type of flask is the volumetric flask. This flask is designed for accurate dilutions and preparation of standard solutions. It has a long neck and a flat bottom, with a precise volume marked on the neck. When preparing a solution, a chemist will add a solute to the flask, then fill it with solvent up to the marked line. This ensures that the concentration of the solution is exact, which is vital for many chemical reactions and experiments. Round-bottom flasks are another essential piece of laboratory equipment. Their spherical shape allows for even heating, making them perfect for distillation processes. When heat is applied, the round shape helps distribute the temperature evenly throughout the liquid. This feature is particularly useful in organic chemistry, where precise heating is necessary to achieve desired reactions without decomposing the substances involved. Beyond their scientific applications, flasks have also found their way into everyday life. For example, many people carry insulated flasks to keep beverages hot or cold while on the go. These modern flasks are often made from stainless steel and designed to prevent leaks, making them practical for travel and outdoor activities. The concept of a flask has thus evolved from a laboratory tool to a versatile container used in various contexts. In conclusion, the flask is more than just a simple container; it is a fundamental instrument in the realm of science. Whether it is the Erlenmeyer flask for mixing solutions, the volumetric flask for precise measurements, or the round-bottom flask for heating substances, each type plays a critical role in experimentation and discovery. Furthermore, the adaptation of the flask concept into everyday life demonstrates its versatility and importance beyond the laboratory. Understanding the various types and uses of flasks can enhance our appreciation for the tools that contribute to scientific progress and innovation.

在科学的世界中，各种工具和仪器对于进行实验和发现都是至关重要的。其中一种在实验室中使用了几个世纪的工具是烧瓶。烧瓶是一种容器，通常由玻璃或塑料制成，用于盛放液体。它有各种形状和大小，每种设计都有特定的用途。最常见的几种烧瓶包括锥形烧瓶、容量烧瓶和圆底烧瓶。每种类型在实验室环境中都发挥着独特的功能。 锥形烧瓶可能是最容易识别的。它的锥形设计使得在不易溢出的情况下轻松混合溶液。这种设计使其成为滴定实验的理想选择，在滴定实验中，精确的测量和混合至关重要。在典型的化学课堂上，学生们常常使用锥形烧瓶来混合不同的化学物质并观察反应。能够在不担心溢出的情况下摇动内容物，是这个烧瓶在初学科学家中如此受欢迎的原因之一。 另一种重要的烧瓶是容量烧瓶。这种烧瓶专为准确稀释和制备标准溶液而设计。它有一个长颈和一个平底，颈部上有一个精确的体积标记。在准备溶液时，化学家会将溶质添加到烧瓶中，然后用溶剂填充到标记线处。这确保了溶液的浓度是精确的，这对许多化学反应和实验至关重要。 圆底烧瓶是另一种基本的实验室设备。它们的球形设计使得加热均匀，非常适合蒸馏过程。当施加热量时，圆形的形状有助于将温度均匀分布在液体中。这一特性在有机化学中尤为重要，因为精确的加热对于实现所需反应而不分解所涉及的物质是必要的。 除了科学应用之外，烧瓶也已经进入日常生活。例如，许多人携带保温烧瓶，以便在外出时保持饮料的热度或冷却。这些现代烧瓶通常由不锈钢制成，并设计成防漏，使它们在旅行和户外活动中非常实用。因此，烧瓶的概念从实验室工具演变为在各种场合中使用的多功能容器。 总之，烧瓶不仅仅是一个简单的容器；它是科学领域中的基本仪器。无论是用于混合溶液的锥形烧瓶、用于精确测量的容量烧瓶，还是用于加热物质的圆底烧瓶，每种类型在实验和发现中都发挥着关键作用。此外，烧瓶概念在日常生活中的适应性展示了它的多样性和超越实验室的重要性。理解各种类型和用途的烧瓶可以增强我们对促进科学进步和创新的工具的欣赏。