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S - PPESK showed high catalytic activity and excellent dimerization selectivity under low reaction temperature conditions.是什么意思？

S - PPESK showed high catalytic activity and excellent dimerization selectivity under low reaction temperature conditions.

S-PPESK在較低的溫度條件下對異丁烯的低聚反應(yīng)表現(xiàn)出了很高的催化活性和二聚反應(yīng)選擇性.

showed

v. 給…看( show的過去式和過去分詞 )，表現(xiàn)出，顯露出，上演；

high

adj. 高的，高尚的，崇高的，高音調(diào)的，高級的，高等的；adv. （程度等）高地，高價地，奢侈地；n. 高處，高位，[氣象學]高氣壓，高壓地帶，高水平；

catalytic

adj. 接觸反應(yīng)的，起催化作用的；n. 催化劑，刺激因素；

activity

n. 活動，活躍，敏捷，活動力，教育活動；

and

conj. 和，與，而且，于是，然后，因此；

excellent

adj. 卓越的，杰出的，優(yōu)秀的，太好了；

dimerization

n. 二聚（作用）；

under

prep. 在…下面，在表面之下，在…的假定表面或掩飾下，少于，小于，在…情況下；adv. 在下面，少于，在水下，在昏迷中；adj. 較低的，下面的；

low

adj. 低的，矮小的，樓下的，低洼的，沮喪的，下賤的；adv. 低聲地，謙卑地，底下地；n. 低點，低水平，牛的叫聲；vi. （牛）哞哞叫；

reaction

n. 反應(yīng)，反作用力，反動，保守；

temperature

n. 溫度，體溫，氣溫，<口>發(fā)燒，高燒；

conditions

n. （居住、工作或做事情的）環(huán)境，（影響某事發(fā)生的）物質(zhì)環(huán)境，<保險>承保險別，條件( condition的名詞復(fù)數(shù) )，狀況，健康狀況，環(huán)境；

...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(zhuǎn)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(quán)當有支付義務(wù)的第一方不能支付時，可以向商業(yè)票據(jù)的背書人要求支付的權(quán)力。

Describes the troubleshooting measures for the mechanical failures, image artifact and ID of the digitizer.
主要介紹了讀取器機械故障、圖像偽影和打號臺故障的解決方法.

But the effect of her being on those around her was incalculably diffusive.
但是她對周圍人的影響之大不可計量.

Diluent and wash water network: Thinner thinner slow dry, wash water network.
稀釋劑及洗網(wǎng)水: 稀釋劑,慢干稀釋劑, 洗網(wǎng)水.

He was also receiving diltiazem for cardiac arrhythmia.
他還接受了地爾硫卓治療心律不齊.

Acute dilatation of the stomach is a rare complication.
急性胃擴張是一種罕有的并發(fā)癥.

You would have to dig up the plant yourself.
你得自己把那株植物挖出來。

There is a political dimension to the accusations.
這些指控含有政治方面的因素。

Yttrium serves as an ideal non - magnetic diluent for the rare - earth metals.
釔被用作稀土金屬一種理想的非磁性稀釋劑.

Synthesis and Studies on Properties of Dimeric Porphyrin.
新型稀土卟啉液晶化合物的合成與功能研究.

Both diffuser and the grid were applied in engineering.
這兩項技術(shù)已在工程中成功地推廣應(yīng)用.

What are the dimensions of this room?
這房間的面積是多大?

I cannot see more than that, except beyond plankton is the digit zero.
再往遠處我就什么也看不見了.只見浮游生物之外是零這個數(shù)字.

Diisopropyl phosphite was directly synthesized from phosphorus trichloride and isopropanol by using the solvent method.
以三氯化磷與異丙醇為原料,用溶劑法合成了標題化合物.