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Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation, hydrogenation, cyclization with an overall yield of 8.05 %.是什么意思？

Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation, hydrogenation, cyclization with an overall yield of 8.05 %.

以苯甲酰氯為原料,經酰化, 還原, 環合等反應合成左旋西替利嗪鹽酸鹽,反應總收率為8.05%.

was

v. 用來表示某人或某物即主語本身，用來表示某人或某物屬于某一群體或有某種性質（ be的過去式），在，存在，不受干擾；

prepared

adj. 事先準備好的，愿意的，期望的；adv. 事先準備好地，愿意地，期望地；v. 準備( prepare的過去式和過去分詞)，預備（飯菜），配備，使（自己）有準備；

from

prep. （表示時間）從…，（表示原因）因為，（表示來源）來自…，（表示分離）與…分離[隔開]；

benzoyl

n. 苯（甲）酰；

chloride

n. 氯化物，〈口〉漂白粉；

by

prep. 在…旁邊，表示方式，由于，經過；adv. 經過，表示保留或保存時用，短暫拜訪；

acidylation

酰化作用；

hydrogenation

n. 加氫，氫化（作用）；

cyclization

n. 環化（作用），成環；

with

prep. 和，跟，隨著，關于，和…一致；

an

art. 一（在元音字母前代替不定代詞a），一任一某一，一個；

overall

adj. 全部的，全體的，一切在內的，綜合的；adv. 全面地，總地，總的說來；n. 工裝褲，罩衫，〈英〉（軍官的）緊身軍褲；

yield

vt. 屈服，投降，生產，獲利，不再反對；vi. 放棄，屈服，生利，退讓，退位；n. 產量，產額，投資的收益，屈服，擊穿，產品；

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]；

...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。

His acidulous remarks towards the mayor put everyone ill at ease.
他對市長尖刻的評論使每個人都不自在.

N acetylcysteine ( NAC ), a precursor of glutathione, is a thiol antioxidant.
N-乙酰半胱氨酸 ( NAC ) 為谷胱甘肽的前體, 是一種含有巰基的抗氧化劑.

Objective : To determine N - acetyl - L - cysteine in compound amino acid injection by spectrophotometry.
目的: 采用分光光度法測定富含支鏈復方氨基酸注射液中N - 乙酰 -L- 半胱氨酸的含量.

The pain, usually a dull ache, gets worse with exercise.
通常不明顯的疼痛在運動后會加劇。

Acerb wet verrucous infection is very fast!
尖銳濕疣感染很快!

Conclusions The development of acetabular anteversion in children is a slow process.
結論髖臼前傾角的發育在兒童期較為緩慢.

He's accused of misusing $17.5 million from a secret government slush fund.
他被指控濫用秘密的政府行賄基金，金額達1,750萬美元。

I hate it when people accuse us of that.
我討厭別人就那件事指責我們。

The result of fracture acidizing is depended on the acidic rock reaction rate.
壓裂酸化效果的好壞,在很大程度上決定于酸巖反應速率的大小.

Fructone was synthesized from ethyl acetoacetate and glycol using activated carbon supported phosphotungstic acid as catalyst.
以活性炭負載磷鎢酸為催化劑合成了蘋果酯,確定了反應的最優條件.

After acetazolamide stress test , rCBF of the hypoperfusion regions in baseline step were significantly increased ( P 0.05 ).
服用乙酰唑胺后, 原腦內低灌注區部位的rCBF均明顯增高 ( P0.05 ).

Horton's Achilles heel was that he could not delegate.
霍頓的軟肋在于他不懂得放權。

Eight acetals ( Ketals ) were synthesized under the optimal conditions.
在最佳條件下,合成了八個縮醛 ( 酮 ) 化合物.