pioneer in... 的先驱pioneern.先锋；开拓者；先驱v.开辟；首倡Pioneering Research Laboratory轻工兵研究所Pioneer Image Converter System"先驱者"图像转换系统pioneering by college students大学生创业pioneers in scientific farming科学种田的尖兵pioneer heading-column method柱洞法pioneering psychological quality创业心理品质Pioneer Station Training Facility轻工兵站训练设备pioneering international conference首创性的国际会议pioneering will be our watch-word开拓是我们的格言pioneering work on infant mortality婴儿死亡率方面的探索性研究工作