Servo-type operational element

servo [['sə:vəu]]

n. 伺服, 伺服系统\\n[计] 伺服装置

type [taɪp]

n. 类型;铅字;（印刷或打印的）文字;于…类型的; vt.& vi. 打字; vt. [医学]测定（血型）;按类型把…归类;成为…的典型;[印刷]浇铸（铅字等）;

operational ['ɑpə'reʃənl]

adj. 即可使用的;（用于）操作的;经营的;军事行动的;

oper 工作 + ation表名词+ al...的 → 操作上的；可使用的

element ['ɛləmənt]

n. [化]元素;要素;原理;[电]电阻丝;

Life has its ups and downs, but it certainly has its rewards.

人生有沉也有浮，但是无论怎样都确有其价值。

I wrote to him last Friday.

我上个星期五写信给他。

when they would be capable of providing information about traffic jams and suggesting alternative routes, when they would be used in hospitals to help doctors to diagnose illnesses, when they would relieve office workers and accountants of dull, repetitiv

计算机可以使办公室人员和会计免除那些枯燥、重复的劳动。