impactiveadj.有冲击力的；有影响力的impactn.影响；冲击力；撞击vt.挤入；压紧；撞击；对 ... 发生影响vi.冲击；撞击；产生影响Impacted Wisdom Teeth阻生智齿impaction of low site低位阻生Impact on agriculture农业影响impact rectified load冲击性整流负载impacts of purchasing采购要素impact identification影响识别impaction of vitreous玻璃体嵌塞Impact Warning System弹着警报系统impact shear strength冲击剪切强度impact on environment环境影响