positive slope

Recall that the angles are positive if the ray has a positive slope.

记住,若光线之斜率为正则角度为正.

The practice showed that the interior energy dissipator can play an positive role in improving the downstream flow patter of dam, protecting downstream environment and guaranteeing the stability of downstream side-slope. Based on the comprehensive consideration, the gyrating-flow energy dissipator has much better.

实践表明，内消能工对改善大坝下游水流流态，保护下游环境，保障下游边坡稳定等有积极作用，综合考虑，旋流式消能工具有较大优越性。

The results showed that the rainfall intensity is the significance factor that affect the quantity of rain splashing erosion, the quantity of rain splashing erosion showed positive relation with rain intensity, slope and soil moisture, but it showed negative relation with the ply of felt soil.

结果表明，降雨强度是影响溅蚀量的显著因子，溅蚀量与雨径、坡度、含水率呈正相关，与结皮厚度呈负相关。

For the soil moisture content of different topography, cloudy slope> half cloudy slope> positive slope, slope bottom> slope central section> slope top, and along with the unceasing increase of slope soil, moisture content reduce continuously little.

对于不同地形的土壤水分含量，阴坡>半阴坡>阳坡，坡下部>坡中部>坡上部，并且随着坡度的不断增加，土壤水分含量不断减小。