英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

chemicals    音标拼音: [k'ɛmɪkəlz]
n. 化学药品

化学药品


请选择你想看的字典辞典：
单词字典翻译
chemicals查看　chemicals　在百度字典中的解释百度英翻中〔查看〕
chemicals查看　chemicals　在Google字典中的解释Google英翻中〔查看〕
chemicals查看　chemicals　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Chemical substance - Wikipedia
    Chemical substances can exist in several different physical states or phases (e g solids, liquids, gases, or plasma) without changing their chemical composition Substances transition between these phases of matter in response to changes in temperature or pressure
  • What Is a Chemical? Definition and Examples
    For example, pesticides in water or artificial colorings in food are “chemicals ” But, chemistry sees chemicals somewhat differently A chemical is a substance with a specific composition It is an element, an alloy, or a compound made up of two or more elements combined in a fixed ratio
  • PubChem
    Search chemicals by name, molecular formula, structure, and other identifiers Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more
  • Chemistry | Definition, Topics, Types, History, Facts | Britannica
    Chemistry is the study of substances—that is, elements and compounds —while biology is the study of living things However, these two branches of science meet in the discipline of biochemistry, which studies the substances in living things and how they change within an organism
  • Chemicals, Pesticides and Toxics Topics | US EPA
    Learn how to safely handle chemicals, the effects of certain toxins, which substances are controlled or managed, and safer alternatives
  • What is a Chemical ? | Nuclear Regulatory Commission - NRC
    Chemical changes are different from physical changes, which don't result in a change in substances One example of a physical change is when water freezes into ice While ice may have different physical properties, it is still just water Another example is when you dissolve salt into a cup of water
  • 12 Types of Chemicals Explained | Uses, Examples Safety Tips
    Learn about 12 types of chemicals with examples, uses, and safety tips Explore acids, bases, polymers, pharmaceuticals, and more in everyday life
  • What Is and Is Not a Chemical? - ThoughtCo
    A chemical is any substance that is made of matter, like solids, liquids, or gases Light, heat, and sound are not chemicals since they are not made of matter Chemicals can be both natural, like oxygen, or artificial, like stainless steel
  • CHEMICAL Definition Meaning - Merriam-Webster
    The meaning of CHEMICAL is of, relating to, used in, or produced by chemistry or the phenomena of chemistry How to use chemical in a sentence
  • CHEMICAL | English meaning - Cambridge Dictionary
    Many chemicals have a damaging effect on the environment The chemical industry produces such things as petrochemicals, drugs, and rubber Sodium chloride is the chemical name for common salt All chemical weapons facilities will be deactivated





中文字典-英文字典  2005-2009