circular hole
短语词组
- circular r hole diffraction 圆孔衍射;囿孔衍射
- circular ring hole 圆环孔
- Circular mounting hole 圆形安装孔
- circular -hole castellated beam 圆孔蜂窝梁
- nanometer circular hole 纳米圆孔
- spherical circular hole 球面圆孔
- plate with circular hole 含圆孔板
- plain circular hole 平圆孔 返回 circular hole