词汇	spiral point
释义	spiral point 螺线极点
随便看	proper body lines proper books of account proper boundary value problem proper breeding proper brown coal proper buyers proper card Proper care of your camera Proper case proper causation proper cavity of mouth Proper concept lattice proper conditions proper digital palmar nerves of ulnar nerve properdin Properdin complement component properdin deficiency properdin deficiency disease proper channel proper channeling proper channels Proper channel spillway properchant proper character proper characters