vacuum的现在完成时怎么写？

vacuum的一般过去时为：vacuumed...

n.真空，空白，空虚，清洁v.用真空吸尘器清扫...

vacuum的现在进行时为：vacuuming...

Nonperturbative vacuum average value of two point function of two gluon with translational invariance is evaluated.在洛伦兹规范条件下,导出了具有平移不变性的双胶子两点函数非微扰真空平均值.The vacuum flask has a strong casing, which won't crack or chip...

vacuum的复数形式为：vacua...

vacuum的近义词/同义词有：clean, sweep, void, bubble, void, clean, sweep, absence, nothing。vt.vacuum的近义词（清扫）：clean, sweep。n.vacuum的近义词（真空）：void。vacuum的近义词（其他释义）：bubble, void, clean, sweep, absence, nothing。...

The Marshal stepped over the vacuum-cleaner and stumped out of the room.元帅迈过真空吸尘器，脚步沉重地走出了房间。Vacuum-packed ham slices should be unwrapped 30 minutes before serving.真空包装的火腿片应在食用前30分钟把包装除去。He could hear the whirr of a vacu...

vacuum的音标：vacuum的英式发音音标为：['vækjuəm]vacuum的美式发音音标为：['vækjuəm]...

vacuum的第三人称单数（三单）为：vacuums...

undulate的现在完成时为：undulated...

proprietor的复数形式为：proprietors...

“超脱”的拼音为：chāo tuō...

“储蓄”的拼音为：chǔ xù...

山顶上升气流强度随速矢端迹曲率加大而稍有加强.Peak updraft strength is slightly enhanced with hodograph curvature.轴矢量自身可参与矢积.An axial vector may itself enter into a vector product.每个立体的矢径总是正值长度.The radius vector of each solid is always a posit...

We left at teatime.我们是在下午晚些时候动身的。At teatime, Victoria sang duets with her Consort, Prince Albert...喝下午茶的时候，维多利亚与其夫君艾伯特亲王表演了二重唱。She was allowed to amuse herself as she liked till teatime.她被允许随心所欲地一直玩到吃茶的时候.We stopped work...

n.敞篷四轮马车的一种...

“观察力”的英语可以翻译为：observation ability，observational ability ...

“毁坏”的近义词/同义词：破坏, 损坏, 粉碎, 摧残, 摧毁, 破损, 损害, 败坏, 拆卸。...

adv.永远，总是...

illustrate的近义词/同义词有：portray, represent, picture, show, clarify, demonstrate, explain, picture, depict, amplify, represent, demonstrate, display, annotate, show, explain, quote, specify, portray, symbolize, illuminate, ci...

子宫病...

This paper will introduce progressive die of the commutators for micromotor.本文将就微型马达精密换向片的量产模具介绍说明.A novel harmonic micromotor actuated by force was proposed, whose basic operating principles were also described.提出了一种基于静...

vi.& vt.（使）服水土，（使）适应新气候或环境...

踏入未知地带最好的对策就是微笑。The best thing to do when entering unknown territory is smile.帕萨迪纳坐落于圣加布里埃尔山麓的丘陵地带。Pasadena lies in the foothills of the San Gabriel mountains.弗兰克·马里亚诺驾驶他那辆破烂不堪的皮卡车成功穿越了沙漠地带。Frank Mariano negotiates the d...