empty set

empty set

• 【数学】空集,零集(= null set)

• Douglas, (George) Norman
• soda ash
• stoninesses
• guest-shot
• foster fathers
• resumes
• case in point
• anthem
• wood alcohols
• Ont
• merozygotes
• interoceptive
• cerambycidaes
• taken(或taking)one with another
• information pollution
• fenuron
• zeta
• inturns
• I wouldn't miss it for the world
• the big boys
• olivine
• storm wind
• expatriating
• oof
• conservation of quantum number
• turbofan
• the last trump
• blow the roof in on
• the Old World
• throwaway line
• Tarbell, Ida Minerva
• in lines
• state feedback
• ignoring
• Hay bridge
• world clock
• topiaries
• haul off and hit / punch / kick sb
• bulrushes
• manticores
• pinchbottle
• blackening
• bacteriuria
• minor canon
• dagdas
• rouse someone's bile
• partial derivatives
• bellyaching
• genned;genning
• steam whistle
• put sb up to sth
• Cassiar orogeny
• Islamises
• put the fritz on
• ostentatiousness
• snakiest
• Curie principle
• open hole
• oyster white
• impulse buying
• back channels
• genetices
• Curling machine
• the magic word
• mobilises
• ugliest
• isometry
• hollow leg
• torsion damper
• cat's-meat
• darvons
• disafforestments
• put (out) to sea
• Marcos, Ferdinand Edralin
• Foucault knife-edge test
• refrozen
• 4-H
• lady in the case
• variograph
• Americanisation
• liminas
• drift sand
• electrohydraulics
• front-loaded
• penciled或pencilled
• syrian pounds
• Nasrani
• brochantite
• give it one's best shot
• W's或Ws
• stand on one's head
• betray into
• act upon someone's advice
• quarter light
• multiprocessings
• West Ridinger
• by good luck
• scufflings
• pipistrelles
• valiant as an Essex lion