词汇	direct sum set
释义	direct sum set 数]直和集[合
随便看	apparent myopia apparent necessity apparent particle size apparent partition apparentness apparentnesses apparent net export availability apparent net transfer apparent net transfer rate apparent neutron porosity apparent nitrification rate apparent n loses apparent noon apparent norepinephrine secretion rate apparent N recovery apparent number apparent nutrient digestibilities apparent object apparent oil price apparent oil-rate Apparent oil/water partition coefficient apparent oil-water partition coefficients apparent onlap apparent optical axail angle Apparent Optical ParametersAOPs