“硬结”的拼音？

感染的下颌, 耳下和颈前淋巴结,通常引起皮下硬结和表面突起.Infected mandibular, parotid and anterior cervical nodes usually cause subcutaneous induration and surface bulging.防止水泥搅拌器内硬结的方法有好几种.There are several ways to avoid setting up in the cement ...

...