He walked clumsily because of the plaster casts on his legs.
因为腿上打着石膏绷带,他走路姿势笨拙.
Methods One hundred and ninety-three teeth with wedge-shaped defects were selected in 69 plaster casts.
方法选取69副牙石膏模型上的193颗上颌患楔状缺损牙齿,游标卡尺测量牙颈部缺损的侧影深度、宽度和高度,计算测量体积;
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