We now have empirical evidence that the moon is covered with dust.

现在我们有实践经验证明月球上布满了灰尘。

The kinetics of deep oxidation of butene-2 and butadiene obeyed the empirical rate equation.

丁烯-2及丁二烯深度氧化动力学服从经验速度方程。

Secondly, structural grammar is empirical, aiming at objectivity in the sense that all definitions and statements should be verifiable or refutable.

其次，结构语法是经验主义的，它非常注重中的客性，认为所有的定义和表述都应该要么是可证实的，要么是可驳倒的。

Most of the work was based on experiment results, and some empirical formulas of shock wave peak pressure, electroacoustical efficiency, and plasma parameters were obtained.

这些机理的获得绝大部分基于实验结果，如已经获得了一些冲击波峰值压力的经验公式，电声学效率，以及等离子体参数。