在一些情况下也可以不用石膏模，而是用由塑料或金属制成的夹板来保护受伤区域而限制它的运动。
In some cases, instead of a cast, a splint made a plastic or metal will be secured over the area to restrict movement.
钻模有形地限制和控制钻削刀具的路径。
Jigs physically limit and control the path of the cutting tool.
减小探测光输入功率，选取短波长探测光波长，增加半导体光放大器的腔长和模场限制因子以及大的偏置电流可提高转换光消光比；
Meanwhile extinction ratio of converted signal can be improved with low probe power, short probe wavelength, long cavity length, high confinement factor, and large biased current.
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