英语单词大全
英语单词大全

vacuum

/''vækjuәm/
柯林斯星级
BNC频率: 5526
现代语料频率: 4930

中文翻译

n. 真空, 空间, 真空吸尘器
a. 真空的, 产生真空的, 利用真空的
vt. 用吸尘器打扫

英文解释

n. the absence of matter
n. a region that is devoid of matter
n. an electrical home appliance that cleans by suction
v. clean with a vacuum cleaner

词态变化

复数形式:vacuums
第三人称单数:vacuums
现在分词:vacuuming
过去式:vacuumed
过去分词:vacuumed

常见例句

1

The part of a vacuum tube opposite the cathode

2

A vacuum tube in which the exhaustion is carried to a very high degree, with the production of a distinct class of effects; -- so called from W

3

n a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen

4

the most electropositive and alkaline metal n a degree on the centigrade scale of temperature n the speed at which light travels in a vacuum

5

pipet consisting of a small tube with a vacuum bulb at one end for drawing liquid in and releasing it a drop at a time

相关词组

1

absolute vacuum

[化] 绝对真空

2

antivacuum

非真空

3

atmospheric and vacuum distillation unit

[化] 常减压蒸馏装置(或设备)

4

atmospheric vacuum distillation process

[机] 常减压蒸馏过程

5

automatic vacuum valve

[化] 自动真空阀

6

backing vacuum

[化] 前级真空

7

breaking of vacuum

[机] 真空下降

8

calandria vacuum pan

[机] 排管式真空釜

9

coarse vacuum

[化] 低真空

10

coarse vacuum pump

[化] 低真空泵

11

cylindrical vacuum dryer

[化] 圆形减压干燥橱

12

degree of vacuum

[电] 真空度

13

Dewar(vacuum)flask

[化] 真空瓶; 杜瓦(真空)瓶

14

dielectric constant of vacuum

[化] 真空介电常量

15

diffusion (vacuum)pump

[化] 扩散泵; 扩散真空泵

16

diffusion (vacuum)pump oil

[化] 扩散泵油; 扩散真空泵油

17

direct vacuum tube current

[医] 直接真空管电流

18

double-bowl vacuum centrifuge

[化] 双鼓真空离心过滤器

19

double-cone rotary vacuum dryer

[化] 双锥形回转真空干燥器

20

drum type vacuum filter

[化] 转鼓式真空过滤机

今日更新

更新时间:2025-06-03 13:03:58