Main baara: a bɛ se ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ ka tɛmɛ Optoelectric tracking, stepless speed regulation and other functions are integrated into one. Optoelectric tracking, stepless speed regulation and other functions are integrated into one. Optoelectric tracking, stepless speed regulation and other functions are integrated into one. Ajuiɛɛr ye kɔrɔ ye kɔrɔ ye kɔrɔ ye kɔrɔ ye kɔrɔ ye kɔrɔ ye kɔrɔ ye kɔrɔ ye kɔrɔ ye kɔrɔ;