The gasoline detection system consists of a capillary restriction.是什么意思？

The gasoline detection system consists of a capillary restriction.

汽油检测系统由毛细管节流器组成.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

gasoline

n. 汽油；

例句
The oil companies were accused of contriving a shortage of gasoline to justify price increases.
石油公司被控故意制造石油短缺以名正言顺地提高油价。

detection

n. 侦查，察觉，发觉，检查；

例句
...the early detection of breast cancer.
乳腺癌的早期发觉

system

n. 体系，系统，制度，身体，方法；

例句
The whole system should be abolished.
整个制度应该被废除。

consists

v. 由…组成( consist的第三人称单数 )，包括，存在于，表现为（常与 in 连用）；

例句
The monument consists of a circle of gigantic stones...
纪念碑由一圈巨石组成。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

capillary

n. 毛细管，毛细血管，微管；adj. 毛细管的，毛状的，表面张力的，细长的；

例句
A novel method for the separation of aminobenzoic acids by capillary electrophoresis was developed.
报道了一种金纳米修饰毛细管电泳分离、测定氨基苯甲酸的新方法.

restriction

n. 限制，限定，拘束，束缚，管制；

例句
The second restriction upon the president's power is the limited time at his disposal.
总统权力受到的第二项限制就是可以自由支配的时间有限。