work-horseBNC¹⁴⁴⁶⁶⁴⁺³ 基本例句 主力；主要设备；役马 In the past thirty years, the work-horse algorithms in the field of digital signal processing and communication have been the gradient descent algorithm and the least square algorithm. 在过去的三十年中，数字信号处理和数字通信领域中采用的主要优化算法是最速下降方法和最小二乘方法。 fabiao