main machinery短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 un.主要的机械；🌏轮机；主要机械 Established calculation models of main performances of such ferry, including estimation of the power of main machinery, forecast of stability and calculation of traverse sway. 建立了中小型客滚船主要性能校核模型，包括主机功率估算、稳性预报和横摇校核； cnki