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Work was also carried out. From numerous facts of ourprevious work, it might be seen that the stereoselectivity of aziridination viasulfonium ylides depends upon the sulfonium salts and C=X compounds. The moreactive the sulfonium ylide and C=X compound are, the more cis product is generated.Whereas, trans product will be major if the activity of the sulfonium ylide and C=Xcompound is low.

通过对以往工作的总结，我们发现，在经由硫叶立德途径的小环化反应中有一个经验规律：产物的立体选择性与所用的锍盐和C=X化合物有关，即锍盐和C=X化合物的活性增强，有利于形成顺式产物，反之，锍盐和C=X化合物的活性降低，有利于反式产物的形成。

Phosphine generally require long exposure periods, whereas methyl bromide and sulfuryl fluoride provide a rapid fumigation that can be completed in less than 4 days, often within 24 hours.

磷化氢一般需要较长的密闭时间，而溴甲烷和硫酰氟则适合快速熏蒸，可在不到4天之内完成熏蒸工作，一般在24小时内完成。

The variaition of the surface current indicates two patterns:from Novermber to next May,it is winter-time pattern,with the left months being the summer-time pattern.The pattern transformation is much slowly from the winter to the summer with～2-3 months;whereas,it is much quick from summer to winter,with only 1 month.These variabilities are mainly caused by the seasonal monsoon.

台湾海峡由南向北传的谐振潮波与由北向南来传播潮波的共同作用，K_1分潮在澎湖列岛西侧海域出现了逆时针旋转的圆流点。2006全年的观测表明，台湾海峡西侧表层流场的的变化主要为冬夏两个阶段，11-5月为冬半年，6-10月为夏半年；由冬向夏的转换较为缓慢，而由夏至冬的转换迅速，主要受制于季风。

These gases trap the sun's heat whereas sulphur dioxide cools the atmosphere.

这些气体留住阳光中的热量，而二氧化硫使空气冷却。

These trap the sun's heat whereas sulphur dioxide cools the atmosphere.

这些气体阻隔了阳光中的热量，而二氧化碳起到使空气变凉的作用。

Voluntary Works besides, over and above, God's Commandments, which they call Works of Supererogation, cannot be taught without arrogancy and impiety: for by them men do declare, that they not only render unto God as much as they are bound to, but that they do more for his sake, than of bounden duty is required: whereas Christ saith plainly, When ye have done all that are commanded to you, say, We are unprofitable servants.

义务工作，而且超出，上帝的诫命，他们称之为作品supererogation ，不能教无arrogancy和不虔诚：由男性做宣布，他们不仅使祂上帝一样，因为他们都是势必出现，但他们做得更多，为他的酒，比的天职是要求：而基督仰说白了，当你们所做的一切都是指挥的向你说，我们是不赚钱的公仆。

Whereas, the mysteries still existing bring people to appeal to the supernature once more, similar to the ancient people.

然而让我们失望的是，目前仍有很多不解之谜存在。和古人一样，人们还是将其诉诸于超自然力量。

The superstratum is made of expert control system, which gives out the set value, whereas, the underlayer consists of PID controller.

同时，将模糊-PID复合控制应用于混合煤气加压机调压系统，实现了出口煤气压力的稳定控制。

Were investigated by pot experiment. The results showed that low Pb concentrations stress could slightly increase the biomass of swamp cabbage, whereas its growth would be significantly inhibited under high concentrations.

结果表明：低浓度的Pb胁迫会提高空心菜的生物量，但高浓度胁迫下空心菜的生长受到抑制，在900 mg/kg Pb处理下空心菜生物量仅为对照的32.4%。

Medica L., whereas the most number and the highest length of roots were produced on a treatment containing both NAA 2.0 mg/L and IBA 0.25 mg/L for Mexican lime Citrus aurantifolia (Christm. Swingle and sweet orange C. sinensis

此外，以1/2MT为基本培养基，附加NAA 2.0 mg/L 和IBA 0.25 mg/L时，适宜于墨西哥来檬和甜橙的生根，而单独使用NAA 3.0 mg/L则易于香橼的生根。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。