释义 |
frass 英fræs美fræsAHDfrăs COCA¹⁷²³¹⁷BNC¹⁷³⁹⁹⁵⁺²iWeb⁵³⁸⁴¹ 基本例句 n.蛀屑⁶⁰;幼虫的粪便⁴⁰ The number of emergence holes and frass holes in weeping willows on both banks of Qinhuai river are investigated. 调查了外秦淮河两岸垂柳上光肩星天牛羽化孔、排粪孔的分布情况。 dictall Here we investigate oviposition-deterring pheromone originated from larval frass of cotton bollworm. 本文研究来源于棉铃虫幼虫粪便的产卵忌避信息素,主要结果如下。 cnki |