二、发明背景 (Background of the Invention)-分为发明领域（Field of the Invention 或 Technical Field）与习知技术（Description of the Related Art 或 Description of ...
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... Background of the invention 背景技术 发明背景 Filed of the invention 技术领域 发明适用领域 Summary of the invention 发明内容 发明概要 ...
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The invention can carry-off membrane stress, which improves the binding force of thin film and plastic rubber background.
本发明可消除薄膜应力，提高薄膜与塑胶基底间的结合力。
The invention relates to a target source with adjustable contrast ratio. The target of the target source is arranged between target integrating sphere and background integrating sphere;
本发明涉及一种可调对比度目标源，该目标源的目标在目标积分球与背景积分球之间；
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