当前类别：地理地质
三分量地震数据：three-component seismic data
三方锥：trigonal pyramid
三方柱：trigonal prism
三方双锥类：trigonal dipyramidal class
三方双锥：trigonal bipyramide
三方全面象晶族：trigonal holohedral class
三方偏方面体：trigonal trapezohedron
三方偏方半面类：trigonal trapezohedral class
三方晶系：rhombohedral system
三方副象半面类：trigonal paramorphic hemihedral class
三方单锥晶类：trigonal pyramidal class
三叠期：triassic
三迭纪：Triassic
三点观测：tripartite observation
三次对称轴：trigonal axis
三成分系：three component system
三叉的：ternate
三边测量：trilateration
三八面体：triakisoctahedron
赛诺曼：cenoman
鳃室：gill chamber
萨克森阶：saxonian
萨克马林阶：sakmarian
撒布肥土：mixing of soils
弱岩层：incompetent bed
弱土质：soft ground
弱透水层：aquitard
弱散锋：diffuse front
弱耦合理论：weak coupling theory
弱含水层：weak aquifer
弱光带：Rhone alps
弱反差底片：faint negative
弱发育盐土：haplic solonchaks
弱发育剖面：weakened profile
弱发育淋溶土：haplic luvisols
弱发育碱土：haplic solonetz
弱发育潮软土：haplaquoll
弱发育暗色土：haplic andosols
瑞提阶：Rhaetic stage
锐角等分线：acute bisectrix
锐顶堰：sharp crested weir
锐顶分水界：knife edge divide
锐调谐；微调：sharp tuning
软岩石：soft rocks
软土：soft soil
软沥青：soft pitch
软力：astenosphere
软胶化：gelation
软硅铜矿：bisbeeite
软骨鱼类：Chondrichthyes