These constraints annotate models with an additional strengthening layer of semantics beyond what is expressible solely in base UML.
这些约束用额外的语义强化层标来注模型，超出了只在基础uml中可表示的内容。
The strengthening layer is made of fiber reinforced plastics. The auxiliary shock suction layer is made of plastic foamed objects.
该补强层由纤维补强塑料制成，该辅助吸震层由塑料发泡物制成。
The effects of pulse width, pulse interval, peak current and process time on intensified layer are analyzed. And the micro-hardness and the property of strengthening layer are also analyzed.
分析了脉冲宽度、脉冲间隔、峰值电流、加工时间对强化层厚度的影响，并对强化层的显微硬度和耐磨性进行了分析。
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