微齿眼子菜 Potamogeton maackianus

齿萼悬钩子 Rubus calycinus

篦齿眼子菜 Potamogeton pectinatus

牙齿和爪子 Tooth and Claw

定子齿轮 internal gear ; stator gear

转子齿轮 exteranl gear ; rotor gear

细齿梳子 fine tooth comb ; Fine comb

电子齿轮箱 EGB ; Electronic gear box

蓖齿眼子菜 Potamogeton pectinatus

宽齿梳子 Wide-toothed comb ; wide tooth comb