primary process短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 基本过程,主过程,初级过程,原始过程 At present, the study on Undaria Pinnatifida is just in primary process in China and the reports are few, while the study in Japan is extensive. 目前,国内对裙带菜的研究尚处于起步阶段,相关报道较少,国外尤其是日本对裙带菜营养和药用价值的研究比较深入。 reader8