empirical formula

For example, compounds having the empirical formula R 2 SiO would be named a ketone.

例如, 分子式为R2SiO的化合物被命名为酮.

Last is the empirical formula this is the simplest ratio of atoms in a molecule.

第三种是经验式,仅仅给出了分子中各原子间最简比.

We don't suppose that this empirical formula is applicable to all machining operations.

我们认为这一经验公式不能适用于所有的加工工序.

The timbering parameters of lane were determined according to timbering engineering empirical formula.

根据工程经验公式确定巷道支护参数.

The main research methods include empirical formula, physical simulation, numerical simulation and field measurement.

主要的研究方法有经验公式法 、 物理模拟 、 数值模拟和现场实测.

The empirical formula for velocity decay was obtained by use of theoretical analysis.

通过理论分析给出了风口速度衰减的经验公式.

At last an empirical formula, based on the grey-system theory, is obtained.

得出自己的建立在灰色系统理论基础上的经验公式.

While in a similar condition, it is effective to apply the empirical formula for engineering design.

在工程设计中,当条件相近时, 直接用该公式设计是可行的.

Appropriate chemical attribute information, such as structural formula, empirical formula, and molecular weight.

适当的化学性质资料, 比如结构式, 经验式和分子量等.

Based on the above analysis, an improved empirical formula for calculating the penetration resistance is suggested.

在此基础上, 提出了改进的计算沉贯阻力的经验公式.