名词
中文翻译：准凸面
同义词：
['approximately convex', 'approximately concave']
例句：
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1. The quasi-convex shape of the object is due to its material properties.
物体的准凸面形状是由于其材料属性造成的。
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2. The quasi-convex surface of the model is smooth and easy to clean.
模型的准凸表面平滑且易于清洁。
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3. The quasi-convex design of the car is a popular choice among consumers.
汽车的准凸设计是消费者中的一种流行选择。