"查查詞典"手機(jī)版
千萬(wàn)人都在用的超大詞匯詞典翻譯APP
The mesothorax is the middle of the three segments in the thorax of an insect, and bears the second pair of legs. Its principal sclerites (exoskeletal plates) are the mesonotum (dorsal), the mesosternum (ventral), and the mesopleuron (lateral) on each side.
詳細(xì)百科解釋