词汇	dorsal vessels
释义	dorsal vessels 昆背血管位于昆虫的背壁下方
随便看	internal reproduction isolation internal reproduction supplies internal reproductive isolation internal reproductive oragan internal reproductive organ internal request internal rescue internal reserve Internal reserves to net profits internal resistance internal resistance detection Internal Resistance Drop internal resistance factor internal resistance furnace internal resistance induction motor internal resistance measurement internal resistance of ammeter internal resistance of battery internal resistance of cell internal resistance of power source internal resistance of rectifier internal resistance of source internal resistance of tube internal resistence monitoring internal resolution site