Groundwater level variation has been quantitatively predicted based on the BP neural network model.

基于BP网络模型，对地下水水位变化规律进行了定量预测。

youdao

Both water storage and level variation have not influenced the tectonic stress field in the study area obviously.

水库蓄水和水位变化对研究区构造应力场没有明显的影响。

youdao

Therefore the site has been designed as a flat field with minor level variation to define certain Spaces and activities.

因此本场地已被设计成一块平面场地，以很小的地面起伏落差，来区分相应的特定空间和活动场所。

youdao

The complement of special moves is also spectacular, with a level of variation that makes almost any gravity-defying trick possible.

CNN: Tony Hawk thrashes the PlayStation with Pro Skater

Professors Even and Macpherson address this by using variation in state-level minimum wages to estimate the impact of the federal minimum wage hike on legal minimum wages in the states.

FORBES: Resources on the Minimum Wage

The magnitude of the variation is measurable and is affected by the number of interviews and the level of the percentages expressing the results.

ENGADGET: Ikea to sell only LED-based lighting by 2016, wants to be greener than your sofa bed