词汇	胸孔虫科
释义	胸孔虫科 Thoracostomopsidae
随便看	negative reactivity coefficient negative reactivity effect negative reactivity feedback negative reactivity margin negative reactor negative reading negative real interest rates negative real part negative receiving negative recency effect negative reception Negative reciprocal of AF properties negative recollection negative recommendation negative record negative reference negative reference group negative reflection negative refractile crystal negative refraction negative-refraction negative refraction index negative refraction index material Negative refraction material negative refraction materials