词汇	fan shaped mirror
释义	fan shaped mirror 扇形镜子
随便看	bore hole stabilization bore-hole stabilization borehole standardization borehole stemming borehole strain borehole strainmeter borehole strain meter borehole strain-meter borehole strainmeter observation Borehole strainmeter observations Borehole strain observation borehole strainometer borehole strain over-coring method borehole stressmeter borehole stress-meter borehole structure borehole-surface electrical imaging borehole-surface variant borehole surroundings structure borehole survey borehole surveying borehole surveying instrument borehole technology borehole technology downhole heat exchanger borehole technology dual