选择性

There were not much choices for trians on Sunday. The first train would depart later than weekday. For arriving at Newbury earlier, Piching chose the earest train which would take 3 transfers. One disaster after another, they faced the engineering day from Reading to the south-west. Thus, the final train was replaced by a bus. It totally took them nore than 5 hours to reach Newbury.

原本星期日的火车选择性就比较少，加上首班都比较晚发车，为了早点抵达Newbury，只好选择最早却要转三次车的班次，好巧不巧的，这天刚好又遇上从Reading起驶往西南边的路线施工，所以只能搭乘替代公车，总共花了五个多小时才好不容易抵达。

Dr. Newsome said, My favorite are directionally-selective cells, cells

纽森博士说，我特别喜欢方向选择性细胞，如果你让一个视觉刺激物

In Chapter 9, you can find a detailed discussion of NIC driver design alternatives as well as software interrupts.

在第9章，你可以看到详细的讨论，关于NIC驱动可以选择性的设计成很好的软件中断模式。

In addition, the nitration of phenol in other microemulsion systems was carried out.

此外，本课题还考察了在其它微乳体系中苯酚的选择性硝化反应。

It was found that the nitration reaction has a high ortho-selectivity, and a high conversion could be achieved.

结果发现在此微乳体系中，苯酚的硝化具有明显的邻位选择性，而苯酚氧化等副反应明显减少，实现了高产率。

The effects of the reaction temperature, the ratio of fluorous phase and organic phase and the water in the reaction system on the nitration were investigated.

考察了反应温度、氟相和有机相的体积比与体系中的含水量对氟两相硝化区域选择性的影响。

3Effects of different kinds of catalysts with Keggin structure on nitration of toluene were studied.

3研究了不同种类Keggin型杂多酸对甲苯硝化反应选择性的影响。

The experimental results showed that the nitrite accumulation obtained from selective inhibition of high concentration free ammonia to nitrifier was unstable.

论文摘要：采用沸石作滤料的生物滤池工艺，分别在高浓度氨、低溶解氧运行的条件下探讨了亚硝化过程选择性的实现。

Adsorption and reaction of H〓 and nitrobenzene on the catalyst had been studied by FT-IR method.

除了成本较高外，传统的用于混合碳四馏分加氢的贵金属催化剂的选择性也很难提高，本文研究了Cu-Co-Ce／Al〓O〓催化剂的混合碳四馏分加氢除炔性能，这在国内还没人涉足，国外有关研究也较少。

The yield and regioselectivity were investigated at various ratios of nitrate to salicylate with copper nitrate comparing with nitrous acid.

对比研究了在不同硝酸根和水杨酸甲酯配比条件下用硝酸铜和硝酸作硝化试剂时的硝化收率和区域选择性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。