轻载荷 meaning in Chinese

underload

Carbide tips for drills ; point angle 85 for light loading
钻头用硬质合金刀头.顶角85轻载荷
Light conveyor belts - test methods for the measurement of the electrical resistances ; german version en 1637 : 1999
轻载荷输送带.测定电阻的试验方法
Light conveyor belts - method of test for the determination of the relaxed elastic modulus ; german version en 1723 : 1999
轻载荷输送带.测定松驰弹性模量的试验方法