双倍的

As well as activity was exhibited. Theaddition of cinchonidine led to a remarkable increase in the reaction rate, as confirmed bythe IR study that the modifier activates the carbonyl groups of the reactant through itsquinuclidine nitrogen. On the contrary,〓 exerted a strong inhibition effect on theenantioselective hydrogenation. Chapter 3 Finely dispersed polyvinylpyrrolidone-stabilized iridium andbimetallic clusters were prepared by the alcohol-water reduction method.

第三章 采用醇水还原的方法制备了聚乙烯基吡咯烷酮稳定的铱纳米簇及双金属纳米簇，对丙酮酸甲酯的催化氢化表明，在铱金属簇催化体系中，辛可尼定不仅诱导了一定的对映选择性，同时对反应活性有明显的促进作用，平均反应速率可提高2-6倍。

In terms of number of telephone connections, a coaxial cable has 80 times the transmission capacity of twisted pair.

根据连接的电话的数目，同轴电缆的传输容量是双绞线的80倍。

The drawing testing、cutting testing and fracture analysis of high chromium casting iron－carbon steel's compounding interface showed: the compounding interface has higher strength and the impact toughness of composite plate is about 5 times of high chromium casting iron, which make it possible to make full use of high chromium casting iron's excellent wear resistance in practice under the high impactive condition.

需要特别指出的是：复合板的冲击韧性高铬铸铁5倍以上，这为高铬铸铁在高冲击工况发挥其优异耐磨性能提供了可能。采用试验方法生产的双金属复合板件正在矿山冲击较大的工况下使用，实际使用时间已经超过以前使用的高锰钢的使用寿命，目前仍在继续使用中。

There was big difference among the 22 different materials in the disease resistance. Translocation lines Pm97033 showed the highest resistance in reaction than others. The percentage of diseased root and severed level were 11.3% and 5.4%; substitution lines Wan7107 showed medium resistance to the fungus, the percentage of diseased root and severity level were 21.4% and 10.6%; F5 generation of common wheat with Till showed higher resistance to take-all fungus than the PS progenies of common wheat with Aegilops tauschii or the other common wheat varieties.

菌饼＋菌粒法对宁春4号的致病力明显高于菌饼法和菌粒法，其病根率、严重度和病茎率分别达到100.0%，57.3%和28.6%。22个遗传背景不同的小麦材料间抗病性差异较大，其中小麦－簇毛麦易位系Pm97033的抗病性最强，病根率和严重度分别为11.3%和5.4%；代换系Wan7107次之，病根率和严重度分别为21.4%和10.6%；硬粒小麦－簇毛麦双二倍体(TH1)与普通小麦品种杂交后代的抗病性强于粗山羊草与普通小麦品种杂交后代。

The results show that,the control of delaying period-doubling bifurcations and unstable periodic orbits in a chaotic attracter of the AOB system is effectively realized,and other stable periodic orbits 2np、3mp and 2np×3mp are obtained by adjusting the control parameters.

仿真模拟显示，通过选择恰当的控制参数，有效地实现了声光双稳系统中倍周期分岔的延迟控制和混沌吸引子中原不稳定周期轨道的稳定控制，同时，还可以将系统控制在2np、3mp 和2np×3mp这样其它任意所需的周期轨道上。

In these bicyclic sesquiterpanes,the relative abundance of the rearranged drimane is regularly changed in spatial distribution,which may indicate the characteristics of petroleum migration and accumulation in QHD32-6 oilfield.

该油田双环倍半萜中重排补身烷的相对丰度在纵向上和横向上都表现出有规律的变化，这种规律性的变化可能反映了秦皇岛32-6油田油气运移与聚集的特征。

We have combined 2PF microscopy with higher-harmonic optical microscopy based on the femtosceond Cr:forsterite laser with the aid of new transgenic lines tagged with HC-red fluorescent protein to obtain molecular, morphological, and structural protein information in biological tissues.

有著基因转殖技术的辅助及利用在於生物穿透较深波段的近红外光飞秒雷射光源，我们结合了双光子萤光显微术和倍频光学显微术来取得生物组织中的分子影像、型态学及有结构的蛋白质资讯。

Regulating the control group used traditional western medicine treatment: The application of the latest "chronic congestive heart failure treatment recommendations"China cardiovascular disease magazine, 2002; 30 (1 :7-21 Recommend the most appropriate method of treatment, According to patients after hospital-based treatment of illness:① general routine treatment: rest, salt restriction, oxygen, etc.;② to the diuretic (urine dihydrochloride grams thiadiazole 25 ~ 50 mg or 20 mg furosemide, antisterone 20 mg, 1 to 3 times daily oral);③ ACEI:(captopril 625 mg, twice daily beginning);④β-receptor blocker (metoprolol from 6.25 mg daily oral dose of 1 start);⑤ cardio (digoxin 0.25 mg daily oral administration, a week after the condition of patients based on the alignment of their drug dosage or suspension).

对照组采用西医规范治疗：采用最新的《慢性充血性心力衰竭治疗建议》（中华心血管病杂志，2002；30（1）：7—21）推荐的最适合的治疗方法，患者入院后即根据病情进行基础治疗：①一般的常规治疗：休息、限盐、吸氧等；②予利尿（双氢克尿噻25~50mg或速尿20mg、安体舒通20mg，每日1~3次口服）；③ACEI：（开搏通6.25mg，每日2次开始）；④β一受体阻滞剂（倍他乐克从6.25mg，每日1次口服开始）；⑤强心（地高辛0.25mg，每日一次口服，一周后依据患者的病情，调整其用量或暂停药）。

His team was asked to design a Mach 2 2.5 aircraft, which was then, and probably still is, a nontrivial task-especially when the objective is to create a "cheap" lightweight aircraft. Consider that the force required to overcome drag quadruples when doubling the speed, and what impact that has on aircraft weight.

要知道当飞行速度由单音速变为双音速时，空气阻力会增加至原来的四倍，考虑到因此所需要的动力，及其对机身重量的影响，满足这样的需求，即使是在今天也绝非易事。

The principle of phase-matching and the technology of single-axis and double axises phase-matching as well as the phase matching width is introduced;The main features and optical properties of Nd:YVO_4 and KTP are given.

介绍了相位匹配原理，分别对单轴和双轴晶体的相位匹配、相位匹配宽度做了详细分析；介绍了实验所用的激光晶体板条状Nd：YVO_4的基本特性和光学特性及倍频晶体KTP的光学特性。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。