Mating systems and methods for joining coated abrasives.
用于接合砂纸的连接系统和方法。
Researchers have long recognized that male-female mating systems revolved around exchanges.
研究者们很早就确认男性-女性婚配体系包括了交换的概念。
Mating systems, as the expression of breeding behaviors, resulted from evolution with species specific aspects and hereditability.
作为繁殖行为的一种表现形式，婚配制度是通过长期进化而形成的，具有种属特异性及可遗传性。
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