noun🔗Share真空A region of space that contains no matter."The scientist studied the vacuum in space to understand how stars form. "科学者は星がどのように形成されるかを理解するために、宇宙の真空を研究しました。spacephysicsastronomyscienceChat with AIVocabulary GamePractice Reading
noun🔗Share掃除機(plural only "vacuums") A vacuum cleaner."My mother uses the vacuum to clean the living room floor every week. "母は毎週、掃除機を使って居間の床を掃除します。utilitydevicemachineChat with AIVocabulary GamePractice Reading
noun🔗Share真空The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, such as the condenser of a steam engine, which is nearly exhausted of air or steam, etc."a vacuum of 26 inches of mercury, or 13 pounds per square inch"水銀26インチ、または1平方インチあたり13ポンドの真空。physicsconditionsciencetechnologyChat with AIVocabulary GamePractice Reading
noun🔗Share真空A spacetime having tensors of zero magnitude"The vacuum of space allows satellites to travel freely without air resistance. "宇宙の真空は、衛星が大気抵抗なしに自由に移動することを可能にします。physicsspacetheoryChat with AIVocabulary GamePractice Reading
verb🔗Share掃除機をかけるTo clean (something) with a vacuum cleaner."Before the party, I vacuumed the living room rug to remove the dust. "パーティーの前に、ほこりを取り除くために居間のじゅうたんに掃除機をかけました。utilitytechnologymachinedeviceworkactionChat with AIVocabulary GamePractice Reading
verb🔗Share掃除機をかけるTo use a vacuum cleaner."My mom vacuumed the living room before the guests arrived. "母は、客が来る前にリビングルームを掃除機をかけました。utilitytechnologymachinedeviceChat with AIVocabulary GamePractice Reading
verb🔗Shareデータベースを最適化するTo optimise a database or database table by physically removing deleted tuples."The database administrator vacuumed the student records table to improve its performance. "データベース管理者は、パフォーマンスを向上させるために学生記録テーブルを最適化しました。computingtechnologyChat with AIVocabulary GamePractice Reading
