电机: (任何产生和应用电能的机器, 特指发电机、电动机) any power-generating or power-driven machine, esp. generator or electric motor; electrical machinery◇电机厂 electrical machinery plant; 电机工程师 electric engineer; 电机工业
凸: Ⅰ动词(高出) bulge; protrude 短语和例子挺胸凸肚 throw out one's chest and bulge one's bellyⅡ形容词(高于周围) protruding; raised 短语和例子凸纹 raised carving or design; 凸花银瓶 [工美] a silver vase with a raised floral de