direct lighting

But up to present, there is no direct guideline indicating the lighting quality of campus roads.

目前国内尚无直接的规范作为指导，导致校园道路的照明质量参差不齐，两极分化严重（见第四章）。

Dont operate the helicopter under the direct sun or strong lighting; it will affect the control system of your helicopter.

请勿在有阳光直接照射下或有强烈光线的环境下进行操作，这会影响飞机的控制系统。

The location and quantity of arrestor and impulse grounding resistance of towers has direct influence on lighting overvoltage.

变电站避雷器安装位置和数量及输电线终端塔的接地电阻对雷电过电压有着直接的影响。

Any given region is therefore more likely to receive at least some direct lighting, causing the softer shadows.

因此，任何地区更容易接受至少一些直接照明，导致软阴影。