A tiny electromechanical switch under the bottom mirror can also lift it up, adjusting the spacing and preventing it from reflecting any light at all.
底层镜子下的一个微型机电开关也能抬高镜子，从而调节间距并防止镜子反射任何光。
During a physiologic motion, axial disc height patterns at AD and PD affects the spacing and overlapping of articulating PF surfaces.
在生理情况下，AD和PD的轴位高度变化影响后方小关节面之间的间距与堆叠。
A comparison of yield and its components between hybrid rice and conventional rice varieties was made with different seedling quantity and row spacing at transplanting.
比较了在不同插秧量和行距配置方式下杂交稻和常规稻的产量及其构成因素。
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