在显微镜下，研究人员观察到这只甲壳动物的头胸部覆盖着坚硬的外骨骼。
Under the microscope, the researchers observed that the cephalothorax of this crustacean was covered by a hard exoskeleton.
Under the microscope, the researchers observed that the cephalothorax of this crustacean was covered by a hard exoskeleton.