| 释义 |
线形动物xiànxíng dòngwù无脊椎动物的一门,身体的形状像线或圆筒,两端略尖,不分环节,表面有皮,体内有消化管,大多数雌雄异体,如蛔虫、钩虫等。{nematode; roundworm; invertebrate with its body shaped like a line or a round cylinder, pointed at both ends, with no segments, with skin outside the body and a digestive tract within it, most of them being dioecious, such as roundworm, hookworm, etc.;}也叫also圆形动物{yuánxíng dòngwù}。 |