Objective To study and shear bond strength of resin - reinforced glass ionomer cement ( RGIC ) on orthodontic brackets.目的探讨两种树脂加强型玻璃离子水门汀对托槽粘结强度的影响.Facial asymmetry and canting dentition are commonly observed at orthodon...
这位战士抓住一条非常结实的绳子很快地向高处爬去.The soldier climbed very quickly catching on a very strong rope.剧场: 沿墙分布的防水地灯照亮墙面,光线由墙的根部向高处扩散,使其渐渐隐逝在黑暗中.Theater: waterproof floor lamps along the walls lighten the surfaces of walls.大家欢快地踏上了那条向高...