開區間

open interval (in calculus)

Characters and words in 開區間

kāi = k + ai1
to open / to start / to turn on / to boil / to write out (a prescription, check, invoice etc) / to operate (a vehicle) / carat (gold) / abbr. for Kelvin, 開爾文|开尔文[Kai1 er3 wen2] / abbr. for 開本|开本[kai1 ben3], book format
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ōu = Ø + ou1
= qu + Ø1
area / region / district / small / distinguish / CL:個|个[ge4]
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delimited area / defined section of a train or bus route / numerical range / (math.) interval
jiān = ji + an1
between / among / within a definite time or space / room / section of a room or lateral space between two pairs of pillars / classifier for rooms
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jiàn = ji + an4
gap / to separate / to thin out (seedlings) / to sow discontent
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