open - loop control的用法和樣例：
例句
- Hysteresis control has disadvantage of unstable switching frequency.
滯環(huán)控制方法存在開(kāi)關(guān)頻率變化不定的缺點(diǎn)。 - And the experimental tests had been carried out to verify the established model as well as the dynamic characteristics under opening loop control.
并通過(guò)實(shí)驗，對所建立的動(dòng)力學(xué)模型及開(kāi)環(huán)控制下平臺的實(shí)際動(dòng)態(tài)特性進(jìn)行了驗證。
