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During these years (1997-2000) in the research area of annonaceous acetogenins 5 natural products and a number of chiral-pure analogs of annonaceous acetogenins have been synthesized using sugars as the starting materials. Their high activity and selectivity against cell line of colon tumor and a relationship between activity and configuration have been found too. In the respect of inhibitor of sialidase two new methodologies for the synthesis of chiral-pure 3-deoxy-ulosonic acid using hetero-Diels-Alder reaction or asymmetric propargylation as the key reaction were developed. On the topic of anti-leukemia marine natural product clavulactone a synthetic method based on the free radical cyclization and starting from sugar has been developed. In other title of PKC inhibited agent sphingosine a new synthetic route with SN2' as the key reaction has also been disclosed.

项目期间(1997-2000)在番荔枝内酯方面从糖出发合成了五个天然产物和一批手性纯的类似物,它们对肠癌细胞有很高的活性和选择性,并与构型有关;在唾液酸酶抑制剂方面发展了二类全新手性纯高碳糖的合成方法-杂原子D-A反应或丙炔基不对称加成为关键的反应;抗白血病海洋天然产物群柱虫内酯方面研究了由糖出发和自由基环化反应的合成方法;对PKC 起抑制作用的鞘氨醇方面也开创了新的合成途径-由糖出发并以SN2'反应为关键反应。

Which are divided into sporophyte developed special-shaped generational and generational shaped gametophytes developed.

其中又分为孢子体发达的异形世代交替和配子体发达的异形世代交替。

Ford Motor Company successfully developed the Spring Lock Coupling in March 1992, and widely apply to many product lines. Owing to the fully support from Ford Taiwan, Jia Yang Company also developed the SLC in December 1996. And had been certificated and authorized to produce by Ford. In Taiwan, there are two types, Mondeo and Escape, adopting SLC in design.

福特汽车公司于1992/03/10研发出新式快速接头,并广大应用于所生产之车种中,加扬公司亦于1996年12月得到台湾福特公司的支持顺利开发出此快速接头,并获得福特原厂验证通过并授权制造,于台湾方面的实绩有 Mondeo, Escape(U204)等车系。

From "My Wife is a Gangster," starring actor Park Sang Min, director Puda Yong in "developed the essential expenditures on the" film to deceive laugh satire way to introduce Byun-Hwan, a people who want to "developed" state of mind and behavior.

由《我老婆系大佬》男主角朴相勉主演,导演朴大勇在《发达唔使本》片中以欺笑怒骂的方式,去介绍Byun-Hwan一家人想「发达」的心态及行径。

In the developed capitalist countries, especially the state monopoly monopoly capitalism developed to a high level.

在发达资本主义国家,垄断特别是国家垄断资本主义发展到了很高的程度。

Changes on the shape of the statolith were observed among different incubated conditions. The shape of the statolith at hatching had obvious differences among different embryonic developmental conditions. The statolith developed in the colder environment had smaller dorsal dome, thinner and shorter rostrum than that developed in the warmer condition.

不同条件下培养的幼体在其平衡石的型态上有所差异,其型态上的变化随著培养的条件而有显著的改变,在较冷的条件下培养的个体拥有较短小的钝端比例之平衡石,而在较高温条件下培养的个体则是拥有较长比例钝端的平衡石。

Yuhong district is the important agricultural planting area of Shenyang outskirts. In recent years, many kinds of planting items in our country are developed, especially in bramble, apple, strawberry, blueberry, tomato, we use developed biotechnologies to cultivate and the planting area is 50000 mu every year, the output is 100000 tons.

于洪区是沈阳郊区农业重点种植区,近年来,开发国家多种种植项目,尤其在树莓、寒富苹果、草莓、蓝莓、西红柿等果蔬方面,采用先进的生物技术进行培植,年种植面积达五万亩,产量10万多吨。

A computer-aided local transient flow property measuring system was developed using a high speed CCD camera coupled with optical fibers in order to study the Gas-liquid-solid three-phase jet loop reactors. SnO2 crystal films were orientally deposited on the alkoxysilane molecule-coated hydroxyl glass substrates so as to prepare surface-marked particles as the tracers. An image analysis system was established to identify different phases. Stroboscopic photography was utilized to extend the measure range. The developed measuring and analysis system was capable of determining accurately the local transient flow property in a G-L-S jet loop reactor. Based on the above system, local transient flow properties of gas, liquid, and solid phase were measured and studied the influences of fluid property, operation and configuration parameters on the reactor.

以气液固三相喷射环流反应器为研究对象,将高速CCD和光纤束耦合制成局部瞬态流动特性微机数据采集及图象处理系统,利用MPS硅烷分子在带有羟基的玻璃基底上的自组装引导SnO2晶态膜层在功能化表面上进行沉积,以获得表面标记的示踪粒子,解决图象处理技术与相的识别的问题,利用频闪技术拓展了测量上限,得到可以准确测定气液固三相喷射环流反应器中局部瞬态流动特性的测试系统;采用上述测试技术进行喷射环流反应器中局部气相、液相与固相瞬态流动特性的实验研究,并考察物性参数、操作参数与结构参数的影响规律。

At least one suborder of trilobites, the Agnostina , are thought to be primarily eyeless . None have ever been found with eyes. In contrast, a few secondarily eyeless species (in which a clear evolutionary trend toward reduced eye size with eventual disappearence of eyes altogether) have developed within several groups, even those known for large, well-developed eyes ( e.g., Phacopina).

在最少一个亚目的三叶虫 Agnostina 中,通常是盲目的,这类三叶虫从来没有发现过眼睛的构造,以此相对的,一些很少的其他亚盲目的种(一些进化了简单的眼睛的物种)是比较进化的,甚至是一些大个体的,有很好的眼睛发育的种,如 Phacopina。

There would still always remain this much, however, namely that the simple categories are the expressions of relations within which the less developed concrete may have already realized itself before having posited the more many-sided connection or relation which is mentally expressed in the more concrete category; while the more developed concrete preserves the same category as a subordinate relation.

马克思强调主体是给定的,而主体的存在规定只是这个一定社会个别的侧面。就认识上来说,「这个一定社会在科学上也决不是在把它当作这样一个社会来谈论的时候才开始存在的。

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It seems likely that Kraft will return with a better offer.

看起来卡夫要重新考虑一个更好的出价了。

But he'd rather burn off my feelers and watch me squirm.

可他却放任那个家伙对我为所欲为!

He consistance of the population dissociation coefficient method andthe sample dissociation coefficient method for the calculation of structural reliabilityin solid rocket motors was reviewed.

依据结构强度-工作应力理论模型,应用数理统计方法和对某团体发动机大量试验数据的实例计算,证明了总体变异系数法和样本变异系数法在结构可靠性计算中的一致性。