off shading meaning in English

色差

Peel off shaded portion covering film ( both of the left and rightwing ) , then pull line out from this hole for later pull out of the servo wire
首先揭去此圆孔上的蒙皮（左右机翼均同），将线从此孔拉出，以备拉出舵机的电气接头。
In order to enhance the sufficient effect and the metering quantity of suction seed metering device , the regulative keep - off shade of seed room and the appropriate mechanism structure were designed on the basis of analyzing the structure and basic principle of suction seed metering device
摘要为了提高气吸式排种器的充种效果及排种质量，在分析气吸式排种器结构和基本工作原理的基础上，设计了充种室种面调节挡帘，并改进了充种室结构。