英汉词典

chemical 基本解释

• n. 化学制品，化学药品
• adj. 化学的

chemical 词态变化

chemical 英文词源

chemical

chemical: [16] Essentially chemical, and the related chemistry and chemist, come from alchemy with the initial al- dropped. Alchemy itself is of Arabic origin; al represents the Arabic definite article ‘the’, while the second element was borrowed from Greek khēmíā ‘alchemy’. Loss of al- seems to have taken place originally in French, so the immediate source of the English words was French chimiste and chimique (whence the now obsolete English chemic, on which chemical was based).

At first this whole group of words continued to be used in the same sense as its progenitor alchemy; it is not really until the 17th century that we find it being consistently applied to what we would now recognize as the scientific discipline of chemistry.
=> alchemy

chemical (adj.)

1570s, "relating to chemistry," from chemic "of alchemy" (a worn-down derivative of Medieval Latin alchimicus; see alchemy) + -al (1). In early use also of alchemy. Related: Chemically.

chemical (n.)

1747, from chemical (adj.). Related: Chemicals.

chemical 英文释义

1. produced by or used in a reaction involving changes in atoms or molecules

chemical 同义词解析

drug, medicine, medication, remedy, cure, chemical

这些名词都有"药"之意。

drug： 普通用词，含义广泛，可指任何用于预防或治疗肉体上或精神上疾病的药品。用复数形式，多指毒品。

medicine： 普通用词，可指药物的总称，也指一切有利于健康的东西。

medication： 指医生开给病人用的一切药物，从最简单的阿斯匹林到最复杂的药物。

remedy： 普通用词，侧重指对恢复健康有效的药品或治疗方法。

cure比remedy更强调使身体恢复健康的疗法或良药。

chemical： 多指工业或化学中的药品，有时也指医药中的药品。

chemical 双语例句

1. Some of the companies illegally sent the wherewithal for making chemical weapons.

有些公司非法为制造化学武器提供所需的资金和设备等。

来自柯林斯例句

2. The chemical structure of this particular molecule is very unusual.

这个特殊分子的化学结构很不寻常。

来自柯林斯例句

3. The chemical companies had amalgamated into a vast conglomerate.

那些化学品公司已经合并成一个庞大的企业集团。

来自柯林斯例句

4. Catalysts are materials which greatly speed up chemical reactions.

催化剂是可以大大加速化学反应的物质。

来自柯林斯例句

5. The Department maintains many close contacts with the chemical industry.

这个部门与化工行业保持着众多密切的联系。

来自柯林斯例句

chemical 实用场景例句

a chemical element

化学元素

牛津词典

the chemical industry

化学工业

牛津词典

chemical reactions/processes

化学反应 / 过程

牛津词典

The raw sewage is chemically treated.

未经处理的污水要进行化学处理。

牛津词典

...the chemical composition of the ocean.

海洋的化学成分

柯林斯高阶英语词典

The whole food chain is affected by the overuse of chemicals in agriculture.

整个食物链因农业生产过程过多使用化学品而受到影响。

柯林斯高阶英语词典

...a chemicals company.

化工公司

柯林斯高阶英语词典

...chemical reactions that cause ozone destruction.

导致臭氧受到破坏的化学反应

柯林斯高阶英语词典

The chemical plant proposed to increase production and practise economy and other factories presently responded.

化工厂提出增产节约的倡仪,其他工厂随即响应.

《现代汉英综合大词典》

Soil consists of various chemical substances.

土壤由各种化学物质组成.

《简明英汉词典》

A catalyst is a substance which speeds up a chemical reaction.

催化剂是一种能加速化学反应的物质.

《简明英汉词典》

The risin and tannin that can be extracted from it are sought by the chemical industry.

从中提取的松香和鞣酸是化学工业上很需要的.

《简明英汉词典》

The explosion of the chemical plant has poisoned many local residents.

那座化工厂的爆炸毒死了许多当地居民.

《简明英汉词典》

The same water was reused after chemical treatment.

原来的水经过化学处理之后再度使用.

《现代英汉综合大词典》

The chemical must be salted out and allowed to dry.

必须把这种化学物质加盐分离出来并让它变干.

《简明英汉词典》

The chemical formula for water is H 2 O.

水的化学分子式是H2O.

《简明英汉词典》

The chemical fertilizer should be well dug in.

化学肥料应该均匀地混入土壤中.

《简明英汉词典》

The soil has been poisoned with chemical waste from the factory.

土壤被从工厂排出的化学废料污染了.

《简明英汉词典》

A chemical factory blew up in the North of England.

英国北部的一座化工厂爆炸了.

《简明英汉词典》

The state allotted them large quantities of chemical fertilizer.

国家给他们调拨了大量化肥.

《现代汉英综合大词典》

chemical additives in petrol

汽油中的化学添加剂

《牛津高阶英汉双解词典》

Chemical weapons are banned internationally.

国际上禁止使用化学武器。

《牛津高阶英汉双解词典》

a report produced by the government in cooperation with the chemical industry

政府与化工行业合作提出的一份报告

《牛津高阶英汉双解词典》

Chemical products were used liberally over agricultural land.

化学产品曾被大量地用于农田。

柯林斯例句

Such a war could result in the use of chemical and biological weapons.

这样的战争可能导致使用生化武器。

柯林斯例句

They are taking precautionary measures to safeguard their forces from the effects of chemical weapons.

他们正采取预防措施保护其军队免受化学武器的伤害。

柯林斯例句