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落水洞
gen.	abra; catavothre; channeling; channelling; slocker; sumidero
desert.	shak-hole; shackhole; sink; water sink
dril.	swallow hole
ecol.	dolines
eng.geol.	dolina (doline); emposieu; leach hole; limestone sink; shake; solution sink; spring sink; swallet hole; swallow
geol.	sink hole
hydroel.st.	sinkhole; aven; ponor; doline; dolinae
tech.	dolina; light hole; lime sink; locket; shake-hole; swallet; water swallow
灰岩地区落水洞
gen.	aven
【意大利语】落水洞
desert.	foiba

落水洞: 32 phrases in 5 subjects

Architecture	1
Desert science	3
Engineering geology	4
Oil / petroleum	4
Technology	20