softenern.软化剂；柔软剂softenv.(使)变柔和；(使)软化softening-melting properties软熔性能softening point of suppository栓剂的软化点softening treatment by steaming蒸汽软化处理softening resistant performance抗软化性能softening and antistatic agents柔软及抗静电剂softening and lubricating agent柔滑剂softening constitutive relation软化本构关系softened strut-and-tie model软化桁架模型soften with hydraulic fracturing水力致裂软化Softening and resolving hard mass软坚散结