定的英語翻譯：

book; order; decide; fix; stable; surely; calm

量的英語翻譯：

capacity; estimate; measure; mete; quantity; quantum
【醫(yī)】 amount; dose; dosis; measure; quanta; quantity; quantum
【經(jīng)】 volume

凝膠的英語翻譯：

gel
【化】 gel; jel
【醫(yī)】 gel; gelatum; jelly

擴散的英語翻譯：

diffuse; pervasion; proliferate; spread
【計】 scattering
【化】 scatter
【醫(yī)】 diffuse; diffusion; extensioin; generalization; generalize; irradiation

試驗的英語翻譯：

experiment; test; try; try on; try out; examination; experimentation; trial
trial run
【計】 breadboarding
【醫(yī)】 probation; test; tria
【經(jīng)】 test; trial