outer-and-inner-layers-of skin 表层和里层皮肤
thickness of inner retinal layers 视网膜内层厚度
inner and outer insulation layers 内侧和外侧绝缘层
The formation of Earth's crust protected the inner layers of Earth from the high-energy particles in space, reducing the temperatures of the mantle and the core.
地壳的形成保护了地球的内层不受太空中高能粒子的影响，降低了地幔和地核的温度。
Finally the proper increase of the overlapped joint's length can decrease the stress intension as well as the strain of outer and inner layers.
第四，中间层的搭接长度的适当增加有利于减少应力集中，并且能降低内外层塑料的应变。
When researchers examined the treated skin tissue under the microscope, they found a new band of collagen, the primary protein in skin, had formed in the inner layers of skin.
当研究人员在显微镜下检查治疗皮肤，他们发现在皮肤的一个新胶原带，初级蛋白质，已经在皮肤内层形成。
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