未充满 meaning in Chinese

lean
underfilling

Jeff : his life did not include very much excitement
杰夫：他的生活并未充满那么多的刺激。
When the fill factor is less than 1 , the concentrated tensile stress appeares near edge of disk surface , while the fill factor reaches up to 1 , the surface exhibites compressive stress , and the center is less tensile stress
当抽运光斑未充满激光介质时，介质的表面靠近边缘处会出现大的拉应力集中，并且介质表面的最大轴向位移和最大拉应力随光斑填充因子增大而增大；而当抽运光充满介质时，表面是压应力，较小的拉应力存在于介质内部。
When the pumping area cannot approach the disk had aperture , the concentrated tensile stress appears near the edge of disk hard aperture , while the disk is pumped full aperture the surface exhibits compressive stress , and center is tensile stress which is lesser
当抽运光斑未充满激光介质时，介质的表面靠近边缘处会出现大的拉应力集中，并且介质中最大拉应力和表面的最大轴向位移随抽运光斑尺寸缩小面增大；而当抽运光充满介质时，表面是压应力，较小的拉应力存在于介质内部。