flowering periodˈflaʊərɪŋˈpiəriəd短语¹⁴⁴⁹⁷²⁺² 基本例句 开花期 The effect on the rice growth in heading and flowering period by SO2 emitted from natural gas purification plant and fell to the ground has been tested through fumigation experiment. 通过对处于抽穗扬花期的水稻进行人工熏气试验，考察天然气净化厂事故徘放时外排的二氧化硫落地后对水稻生长的影响。 dictall