小叶癌变
conservation of charge───[物]电荷守恒；电量守恒
cancellation fee───取消费；销号费
cancerization───n.癌化
conservation of charges───[物]电荷守恒；电量守恒
conservation of energy───[物]能量守恒（定律）
conservation of mass───[物]质量守恒；质量守恒定律
conservation of masses───[物]质量守恒；质量守恒定律
conservation of matter───物料守恒
conservation of momenta───动量守恒