an

art. 一（在元音字母前代替不定代詞a），一任一某一，一個；

例句
He started eating an apple...
他開始吃蘋果。

average

adj. 平常的，平均的，典型的，（價值、比率等的）平均數的；n. 平均水平，（速度等的）平均率，平均估價；vt. [數學] 計算…的平均值，調和，拉平，分攤，按比例（或平均）分配（利潤等）；vi. 平均：作為或達到一個中間值，維持（有利的）平均價

例句
Victoria Falls has had above average levels of rainfall this year...
維多利亞瀑布今年的降雨量超過了平均水平。

of

prep. 關于，屬于…的，由…制成；aux. 助動詞 [非標準用語、方言] =have [主用于虛擬語氣]；

例句
He did have a real knowledge of the country...
他對該國的確知之甚多。

four

num. 四，四個，第四；n. 四個人（或事物）的一組，得四分的一擊，四人賽艇；

例句
His car was held up and he was abducted by four gunmen...
他的車遭遇攔劫，隨后他被4名持槍歹徒劫持。

were

be的過去時復數和第二人稱單數形式，有時代替 was,用于條件從句、動詞 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店鋪、房子和車輛全都陷于火海。

utilized

v. 利用，使用( utilize的過去式和過去分詞 )；

例句
Minerals can be absorbed and utilized by the body in a variety of different forms.
人體可通過很多不同形式吸收和利用礦物質。

per

prep. 由，（表示根據）依照，（表示比率）（尤指數量，價格，時間）每；adv. 每次，每個，照常，按慣例；adj. 高的，過的，全的；

例句
30 per cent of psychiatric hospital beds are occupied by people of no fixed abode.
精神病院30%的床位是被無家可歸者占據的。

GKS

abbr. Graphics Kernel System 計算機圖形核心系統；

例句
Gamma Knife surgery ( GKS ) has recently been tried as an alternative to surgical extirpation.
伽瑪刀治療 ( GKS ) 最近被嘗試作為手術根治之外的另一種選擇.

...the spiralling vortex airflow that slows the plane.
使飛機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。

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;疼愛兒子的, 趁早管教.

For further information, please contact 414 3925, extension 2253.
詳情請致電414 3925,轉分機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在很多人看來是可信的。

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.
追索權當有支付義務的第一方不能支付時，可以向商業票據的背書人要求支付的權力。

Objective After cataract is after extracapsular cataract or lensposterior capsule opacification.
目的:探討超聲乳化白內障吸除術中后囊膜破裂的發生原因及防治原則.

Following the roar, out rushed a tiger from among the hushes.
一聲吼叫, 呼地從林子里沖出一只老虎來!

He bared the tree of its bark.
他剝光樹皮。

Black clouds forebode a storm.
烏云預示有暴風雨.

He stood a few moments, rocking back and forwards on his heels...
他站了一會兒，踮著腳跟前后搖晃。

She want to buy some lingerie on her way home.
她想在回家的路上買些女用貼身內衣褲.

This trichrome stain of a glomerulusa patient with focal segmental glomerulosclerosis ( FSGS ) demonstrates blue collagen deposition.
局灶性節段性腎小球硬化,三色染色顯示藍色的膠原沉積.

The flag was red, with a large white circle in the center...
旗子是紅色的，中央有個白色大圓圈。

After a brief inquiry about the Christmas holiday, he returned to the subject of music.
簡短地問了一下圣誕假期之后,他又回到了音樂的話題上。

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平均每個GKS用到4個等量點.用英語怎么說？

平均每個GKS用到4個等量點.

An average of four isocenters were utilized per GKS.

an

average

of

four

were

utilized

per

GKS