lsqCOCA²⁵⁰⁶⁰²BNC²³⁶²¹³⁺¹ 基本例句 =least square 最小平方,最小二乘法 By designing and develop the LSQ Series hermetic multi compressor water chillers, Writer advance design features of PC control system to satisfy design requirements. 作者通过对 LSQ系列全封闭多机头冷水机组控制系统的设计与研制，提出满足设计要求的 PC控制系统的设计特点。 cnki