boring animals是什么意思

用法例句

Ecological studies on mangrove boring animals Fujian;

福建红树林上钻孔动物的生态

Based on the kinetic analysis of axial vibrating drilling process, the cutting force under axial vibrating drilling is studied systematically.

在对轴向振动钻削过程进行运动分析的基础上,对轴向振动钻孔切削力进行了系统研究,给出了瞬时切削力和平均切削力的理论表达式。

Chip breakage in vibratory drilling is caused by discontinuous cutting process.

指出振动钻孔断屑是由间断切削过程造成，根据振动波形干涉可得出理论断屑条件。