单词	methyl donor
释义	methyl donor 甲基供体
随便看	range-data telemetry range day beacon range deflection fan range delay range delay diagram range dependence range depletion range derivative range determination range deviation range dial range difference range difference measurement of satellite fixing range digital indicator ranged in range direction range disc range discriminant (in tracking loops) range discrimination range discrimination power range disjunction range disk range disk operating statement range dispersion range dispersion diagram bwos bwqhzb bwqj bwqw bwqx bwqz bwsc bwsq bwtw bwwa 全食全麻八八一三事变八一南昌起义八一宣言八一建军节八一节八下里八不主义