词汇	negative coma
释义	negative coma 负彗形象差
随便看	product of past labor work product of past labour work product of paths product of petroleum product of philosophic interpretation product of polymerization product of power product of probability product of processing product of public institutions product of quality product of relation product of resistance times capacitance product of roasting product of same ordered sum product of sets product of sphere product of spinning mill product of stone product of stone, multilayered product of sum product-of-sum product-of-sum canonical form product-of-sum form product of sums