1. Endothorax is composed of invaginations of the tergal, pleural and sternal regions of each thoracic segment.
胸内骨是由各胸节背、侧、腹部的内陷构成。

来自互联网

2. Endothorax is composed of invaginations of the tergal, pleural and sternal regions of each thoracic segment.
胸内骨是由各胸节背、侧、腹部的内陷构成。

来自互联网