双支墩大头坝
Massive-head Double Buttress Dam
车辆支墩支承结构
pier bearing structure of train
AB2型环糊精大单体
AB2 type cyclodextrin monomer
表面活性大单体
surface-active macromonomer
大单层囊泡
Large unilamellar resicle
大单晶
large single crystal diamond
large single crystal
大单晶CVD金刚石
large single crystal CVD diamond