中文翻译与英英解释

n.
1.【植物；植物学】球根；鳞茎。
2.球状物；(寒暑表的)水银球；灯泡；烧瓶；真空管；测温包。
3.【解剖学】球；〔pl.〕扁桃腺。
4.(照相机的)快门。
5.(汽车的)圆顶车壳；【航海】球形船首。
短语和例子
a lily bulb 百合根。 an electric bulb 电灯泡。 the bulb of a hair 毛球，发根。 the bulb of the eye 眼球。 the bulb of the spinal cord 【解剖学】延髓。
vi.
1.生球茎。
2.肿[涨]成球，形成球状。
adj.
-ed
1.有鳞[球]茎的。
2.鳞[球]茎形，圆形的。

a rounded part of a cylindrical instrument (usually at one end); "the bulb of a syringe"

electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity
同义词：light bulb, lightbulb, incandescent lamp, electric light, electric-light bulb,

a rounded dilation or expansion in a canal or vessel or organ

lower or hindmost part of the brain; continuous with spinal cord; (`bulb'' is an old term for medulla oblongata); "the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning"
同义词：medulla oblongata, medulla,

a modified bud consisting of a thickened globular underground stem serving as a reproductive structure

anything with a round shape resembling a teardrop

A bulb is a short stem with fleshy leaves or leaf bases.Bell, A.

例句与用法

The bulbs should be enclosed in safety shields .
灯泡应装在安全罩内。

A bright electric bulb glowed above our heads .
通亮的灯泡在我们头上闪闪发光。

The new plant forms new bulbs in vegetative reproduction .
增殖性繁殖新株长成新鳞茎。

V is the volume of the bulb .
V代表球泡的体积。

The top of the bulb cd must be at a lower level than mark b .
球管CD的顶应低于标记B的水平面。

To suction with a bulb syringe, push bulb in with your thumb .
用球吸引器时先用拇指把球压扁。

It's a bulb pressure tester for detecting battery leaks .
这是检测电瓶漏气用的胶球压力试验器。

The lack of air in the bulb prevents the filament from burning up .
灯泡内缺乏空气就使灯丝不致烧掉。

I must get those bulbs planted before the cold weather sets in .
我得在天气转冷之前把这些球茎秧种上。

I have sent off for those bulbs i saw advertised in the paper .
我已写信订购我在报纸广告上看到的那种灯泡。