N a magnetized needle pivoted through its centre of gravity able to rotate freely in a vertical plane, used to determine the inclination of the earth's magnetic field 磁倾仪指针 → see also dip circle
dip of needle磁针倾角
dip p needle磁倾针
dip-needle mechanism磁倾针机构
dip-needle磁针
dip of the needle磁针俯角磁倾角;磁针俯角;磁倾角
dip needle dipping needle磁倾针
dip needle work磁法勘探
magnetic dip needle磁倾仪
miner's dip needle[矿业] 矿用磁倾仪
N（名词） a magnetized needle pivoted through its centre of gravity able to rotate freely in a vertical plane, used to determine the inclination of the earth's magnetic field 磁倾仪指针 → see also dip circle