free hand cutting

Taken the microscopic characteristic as the foundation and the macroscopic characteristic as supplement and confirmation,the residual sawdust from wooden instrument which taken from a case of criminal has been identified based on section by hand.

以微观特征为基础,以宏观特征为补充验证,采用徒手切片法对一桩刑侦案件涉案木质器械残留木屑进行了木材鉴定,结果判定为广泛分布于安徽各地的蝶形花科(Pap ilionaceae)黄檀属(DalbergiaL。

Objective To discuss errors of conformal plumbic blocks made with manual cutter and automatic cutter.

目的:探讨手动切割机与自动切割机制作适形铅挡块的误差。