The metering rod either has two or more steps of different diameters or is tapered at its lower end . 量油杆可以有两个或更多个不同直径的台阶，或在它的下端被逐渐削成锥形。
Lack of the chlorolabe pigment in the retinal cone cells results in inability to discriminate green colors, or deuteranopia . 在视网膜锥形细胞中缺乏感绿色素，便导致了对绿色辩别无力或绿色盲。
Without further ado, she trod lightly but firmly across the frail bridge, and in another second had gained the heaving stone . 她毫不迟疑地踏上了那座单薄的桥，转眼间就轻盈地走到那块锥形石头上。
Hose fittings ; tapered nozzle with clamping nut 软管连接件.带压紧螺母的锥形管嘴
