基本解释n.原丝体；丝状体同根派生 protonema相关词英汉例句用作名词 (n.)Describing the characters and developmental features of spore germination and protonema development of moss applied in this research by microscopy.采用显微观察的方法具体描述了藓类植物孢子萌发与原丝体发育的特征及发育特点。protonema更多例句