Chemistry

聚合物, 大分子

Polyethylene is a common polymer used in the production of plastic bags, bottles, and various packaging materials.

聚合物是一种常见的聚合物，用于生产塑料袋、瓶子和各种包装材料。

同位素, 同位素形式

Carbon-12 and carbon-14 are isotopes of carbon, with the former having 6 neutrons and the latter having 8 neutrons.

碳12和碳14是碳的同位素，前者有6个中子，后者有8个中子。

反应性的, 被动的

The company remained reactive instead of taking a proactive approach.

该公司保持被动反应，而不是采取积极主动的方法。

放射性的, 有放射性的

Radioactive isotopes are used in medical imaging for diagnostic purposes.

放射性同位素用于医学成像以进行诊断。

共价键, 电子共享键

Covalent bonds are like atoms sharing electron hugs to stick together.

共价键就像原子共享电子拥抱以粘在一起。

双键, 键双

Ethylene (C₂H₄) contains a double bond between two carbon atoms, allowing it to participate in polymerization reactions.

乙烯（C₂H₄）含有两个碳原子之间的双键，使其能够参与聚合反应。

亲水的, 对水分子有强吸引力的

The hydrophilic nature of cellulose fibers in paper towels makes them effective at absorbing spills.

纸巾中纤维素纤维的亲水性使它们在吸收溢出物时非常有效。

疏水的, 憎水的

The hydrophobic coating on a rain jacket causes water to bead and roll off its surface.

雨衣上的疏水涂层使水珠形成并从其表面滚落。

放热反应, 释放热量的反应

Combustion of propane in a gas stove is an exothermic reaction that releases heat and light.

燃气灶中丙烷的燃烧是一种放热反应，释放出热量和光。

吸热反应, 吸热过程

When ammonium nitrate dissolves in water, the endothermic reaction causes the solution to cool.

当硝酸铵溶解在水中时，吸热反应会导致溶液冷却。

原子量, 原子质量

The atomic mass of carbon is approximately 12.01 because it averages the masses of carbon-12 and carbon-13 isotopes.

碳的原子量约为12.01，因为它是碳12和碳13同位素质量的平均值。

分子量, 分子质量

质量数, 核子数

The mass number of carbon-12 is 12, as it has 6 protons and 6 neutrons.

碳12的质量数是12，因为它有6个质子和6个中子。

鼹鼠, 摩尔

烧杯, 实验室容器

移液管, 滴管

She carefully calibrated the pipette before transferring the sample into the test tube.

在将样品转移到试管之前，她仔细校准了移液器。

离心分离, 进行离心处理

The lab technician centrifuged the blood sample to extract plasma.

实验室技术员离心了血液样本以提取血浆。

指示纸, 石蕊试纸

周期表, 元素周期表

The periodic table, devised by Dmitri Mendeleev, categorizes elements into rows and columns based on their properties.

由德米特里·门捷列夫设计的周期表根据元素的性质将它们分类为行和列。

钙化, 钙化过程

The calcification of bones is essential for maintaining their strength and structure.

骨骼的钙化对于维持其强度和结构至关重要。

滴定, 定量

In the chemistry lab, we used titration to find the concentration of acetic acid in vinegar.

在化学实验室中，我们使用滴定来测定醋中乙酸的浓度。

发酵

The fermentation of dough by yeast produces carbon dioxide gas, causing the dough to rise and become light and airy when baked.

酵母对面团的发酵产生二氧化碳气体，使面团膨胀并在烘烤时变得轻盈松软。

专注, 持续关注

微探针, 显微探针

多组分合金, 多元合金

激进的

The radical activist advocated for the overthrow of the government to establish a new social order.

激进活动家主张推翻政府以建立新的社会秩序。

仔细的检验, 慎重的评估

His essay was an assay of modern political anxieties.

他的散文是对现代政治焦虑的细致评估。

平衡

The tightrope walker maintained perfect equilibrium as they carefully balanced along the narrow line.

走钢丝的人在小心翼翼地沿着狭窄的线保持平衡时保持了完美的平衡。

电解, 电蚀除毛

She decided to undergo electrolysis to achieve long-lasting hair removal and enjoy smooth skin.

她决定接受电解以实现持久的脱毛并享受光滑的皮肤。

溶解, 使溶解

The pharmacist instructed him to dissolve the medication in water before taking it.

药剂师指示他在服药前将药物溶解在水中。

稀释, 冲淡

To make it more palatable, you can dilute the juice with water.

为了让味道更好，你可以用水稀释果汁。

暂停, 暂时中止

The company decided to suspend production temporarily due to a supply chain issue.

由于供应链问题，公司决定暂时暂停生产。

增溶, 溶解

微观结构, 显微结构

纳米管, 纳米级管

Researchers are exploring the use of carbon nanotubes in the development of stronger, lighter materials.

研究人员正在探索碳纳米管在开发更强、更轻材料中的应用。

熔化的, 因高温而呈液态的

The molten lava flowed down the mountainside during the volcanic eruption.

火山喷发期间，熔化的熔岩顺着山坡流下。

阶段, 时期

The project is currently in its planning phase.

该项目目前处于规划阶段。

解毒, 中和有害物质

Environmental initiatives aim to detoxify polluted water sources for the well-being of aquatic ecosystems.

环保倡议旨在解毒被污染的水源，以促进水生生态系统的福祉。

结晶的, 结晶化的

The crystalline structure of snowflakes makes each one unique.

雪花的晶体结构使得每一片都独一无二。

晶体学家, 晶体学专家

The crystallographer used X-ray diffraction to analyze the mineral samples.

晶体学家使用X射线衍射分析矿物样品。

宇宙化学家, 研究天体化学组成和过程的科学家

色谱法

The scientist used chromatography to separate the pigments in a leaf extract.

科学家使用色谱法来分离叶提取物中的色素。

β衰变, 贝塔衰变

Carbon-14 undergoes beta decay to nitrogen-14 with the emission of an electron.

碳-14通过β衰变转变为氮-14并发射一个电子。

不带电的, 未充电的

Water molecules are uncharged, consisting of neutral oxygen and hydrogen atoms.

水分子是不带电的，由中性的氧和氢原子组成。

电容器, 电容

冶金学家, 冶金专家

The metallurgist conducted experiments to determine the optimal alloy composition for the new aerospace material.

冶金学家进行了实验以确定新型航空航天材料的最佳合金成分。

吸附, 吸附作用

Activated charcoal is known for its high adsorption capacity, making it effective in purifying water and air.

活性炭以其高吸附能力而闻名，使其在净化水和空气方面非常有效。

生物柴油, 生物燃料

The truck runs on biodiesel, which is better for the environment than regular diesel.

这辆卡车使用生物柴油运行，比普通柴油更环保。

共晶, 共晶成分

The eutectic composition of the alloy ensures it melts uniformly at a precise temperature suitable for casting.

合金的共晶成分确保其在适合铸造的精确温度下均匀熔化。

超吸收性, 超吸收性材料