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語(yǔ)文書 / 例句 /

He measured the speed at which ultrasonic waves travel along the bone.是什么意思？

He measured the speed at which ultrasonic waves travel along the bone.

他測(cè)出了超聲波穿過(guò)骨頭的速度。

he

pron. 他，它，一個(gè)人；n. 雄性動(dòng)物；

例句
Logic had prevailed and he had abandoned the idea.
最終理智占了上風(fēng)，他打消了那個(gè)念頭。

measured

adj. 仔細(xì)斟酌的，慎重的，緩慢而又有節(jié)奏的；v. 量( measure的過(guò)去式和過(guò)去分詞 )，測(cè)量，衡量，量出；

例句
Peace could come only gradually, in carefully measured steps. Even then, it sounds almost impossible to achieve...
和平只會(huì)逐漸到來(lái)，而且每一步都走得小心翼翼。即使那樣，要實(shí)現(xiàn)和平聽起來(lái)仍幾乎不可能。

the

art. 指已提到的人（物），指說(shuō)話人與聽者已知的人（物），用于獨(dú)一無(wú)二的事物前，與形容詞最高級(jí)和序數(shù)詞連用；

例句
He did have a real knowledge of the country...
他對(duì)該國(guó)的確知之甚多。

speed

n. 速度，快速，昌盛，（汽車的）變速器，排擋；vt.& vi. 急行，加速；vi. 超速，加速，迅速前行，興隆；vt. 加快…的速度，使成功，使繁榮；

例句
Every bank pays close attention to the speed and accuracy of its staff.
每家銀行都非常關(guān)注雇員的工作速度和無(wú)差錯(cuò)率。

at

prep. （表示位置）在，在（某時(shí)間或時(shí)刻），以，達(dá)，向，朝；n. 阿特（老撾輔幣單位，100 阿特 = 1 基普）；

例句
Prices start at ￡13.95 a metre for printed cotton...
印花棉布以每米13.95英鎊的價(jià)格起售。

which

pron. 哪一個(gè)，哪一些，哪個(gè)，那，指前面提到的事物；adj. 哪一個(gè)，哪一些；

例句
...the latest date at which a foetus can be aborted.
能夠打胎的最遲日期

ultrasonic

adj. [聲]超聲的，超音波的，超音速的；n. 超聲波；

例句
He measured the speed at which ultrasonic waves travel along the bone.
他測(cè)出了超聲波穿過(guò)骨頭的速度。

waves

n. 波( wave的名詞復(fù)數(shù) )，揮手，涌現(xiàn)的人（或事物），洶涌的行動(dòng)（或思想）態(tài)勢(shì)；v. 飄揚(yáng)，搖擺，起伏( wave的第三人稱單數(shù) )，（一端固定地）飄揚(yáng)，揮手指引，揮動(dòng)…示意；

例句
As we fall asleep the amplitude of brain waves slowly becomes greater.
進(jìn)入睡眠狀態(tài)時(shí)，我們的腦電波振幅慢慢變大。

travel

n. 旅行，進(jìn)行，移動(dòng)，漫游；vi. 旅行，傳送，前進(jìn)，行進(jìn)，[籃球]走步；vt. 經(jīng)過(guò)，通過(guò)，游歷；

例句
It is generally not advisable for expectant mothers to travel by air after the 28th week of pregnancy.
懷孕28周以后的準(zhǔn)媽媽一般不宜乘坐飛機(jī)出行。

along

adv. 一起，向前，進(jìn)展，到某處；prep. 沿著，順著，靠著…邊；

例句
The helicopter can zip along at about 150 kilometres an hour.
該直升機(jī)能以每小時(shí)150公里左右的速度疾進(jìn)。

bone

n. 骨頭，尸骨，骨質(zhì)物，有…樣的骨頭的；vt. 挑魚刺，剔骨頭，剔去…的骨；vi. 苦學(xué)，專心致志；

例句
...a small, expensive pocketknife with a bone handle.
昂貴的骨柄小折刀

...the spiralling vortex airflow that slows the plane.
使飛機(jī)減速的螺旋形氣流渦旋

You just go on ahead. I'll come by later...
你只管先往前走。我隨后就來(lái)。

He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打兒子的,是恨惡他;疼愛(ài)兒子的, 趁早管教.

For further information, please contact 414 3925, extension 2253.
詳情請(qǐng)致電414 3925,轉(zhuǎn)分機(jī)2253。

He sat there while I made the case for his dismissal...
他坐在那兒，聽我陳述解雇他的理由。

Baroness Thatcher's claims seem credible to many.
撒切爾女男爵的主張?jiān)诤芏嗳丝磥?lái)是可信的。

Nothing to be got without pains but poverty.
一份耕耘，一份收獲。

This decree obliges unions to delay strikes.
該法令迫使工會(huì)推遲罷工。

The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索權(quán)當(dāng)有支付義務(wù)的第一方不能支付時(shí)，可以向商業(yè)票據(jù)的背書人要求支付的權(quán)力。

相關(guān)例句

...a weary traveller...
疲憊不堪的旅行者

...all the joys and heartaches of parenthood.
為人父母的所有快樂(lè)和痛苦

The commission remains so weak that it will continue to avoid confrontation with governments.
該委員會(huì)的力量仍然十分薄弱，所以將繼續(xù)避免與各國(guó)政府發(fā)生沖突。

The protest campaign has used mass strikes and demonstrations to press its demands...
抗議活動(dòng)通過(guò)大規(guī)模罷工和示威游行來(lái)向當(dāng)局提出訴求。

He was a personal friend whom I've known for many many years...
他是一位我認(rèn)識(shí)多年的私人朋友。

It will free us of a whole lot of debt...
它會(huì)使我們擺脫巨額債務(wù)。

The times are approximate only.
這些只是大致的時(shí)間。

I realized with a kind of dull shock that I didn't recognize a single name.
我暗自一驚，發(fā)現(xiàn)一個(gè)名字都不認(rèn)識(shí)。

We were working on the eleventh floor.
我們?cè)?1層辦公。

'I really want some dessert,' Keaton says, smacking his lips.
“我真的很想吃點(diǎn)兒點(diǎn)心，”基頓咂著嘴說(shuō)。

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