求翻译：无机化学是除碳氢化合物及其衍生物外，对所有元素及其化合物的性质和他们的反应进行实验研究和理论解释的科学，是化学学科中发展最早的一个分支学科。是什么意思？

Inorganic Chemistry is in addition to hydrocarbons and their derivatives, the compounds of all elements and their properties and their response to experimental studies and theoretical explanation of the science of chemistry in the development of the earliest is a branch.

inorganic chemicals, hydrocarbons and their derivatives, outside of all the elements of nature and its compounds and their reactions to conduct empirical research and theoretical explanation of chemical disciplines, science, and is one of the earliest one branches.

The inorganic chemistry is beyond the material world except the hydrocarbon and the derivation, conducts the experimental study and the theory explanation science to all elements and the compound nature and their response, is in chemistry discipline develops an earliest branch discipline.

Is addition to hydrocarbons and their derivatives, inorganic chemistry, properties for all elements and their compounds and their reactions for experimental research and theoretical explanation of the science, is a branch of chemistry disciplines in the development of the first subject.

The inorganic chemistry is besides hydrocarbon and its derivative, the response to the properties and theys of all elements and its compounds carries on the science that experiment research and theory explain, develop the earliest branched discipline in the chemical discipline.