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The chemical constituents of Huperzia serrata Trev. are mainly flavonoids, triterpenoids and alkaloids. In order to get further comprehension of lycopodium alkaloids, we studied the low-polar section of the alkaloids extraction of Huperzia serrata and 19 alkaloids were isolated by ways of silica gel, RP-18 and Sephadex LH-20 etc. All of their structures, including five new compounds and two known ones that were firstly found from this genus, were elucidated with the help of Mass, IR, NMR spectra and so on. The five new alkaloids (HS-07, HS-08, HS-09, HS-10 and HS-11) are belonged to lycopodine class. The other two ones that were new to this genus (HS-18 and HS-19) are belonged to miscellaneous group.

蛇足石杉的主要化学成分为黄酮，三萜和生物碱，为进一步了解该植物的生物碱成分，我们研究了蛇足石杉氯仿总碱低极性部位的生物碱成分，运用正相硅胶、反相RP-18、凝胶LH-20等方法分得了19个生物碱，并通过质谱、红外、核磁共振等波谱鉴定了它们的结构，其中5个为新化合物，2个为首次从该属植物中分离得到的化合物，所分得的新化合物：HS-07、HS-08、HS-09、HS-10和HS-11均为lycopodine类石松生物碱，首次从该属植物中分得的化合物为miscellaneous类：HS-18和HS-19。

Finally, Macaw case study will be carried out to explore all the possible issued faced for before and after take over of Macaw under the theory frame work of "one country, two system" and from the central/local relationship of Mainland China. Hopefully, the conclusion of the study can help to understand (1) the feasibility of political system and development under Communist China's "one country, two system" and (2) possible future development and trend, direction and outlook.

最后，希望在「一国两制」的理论架构下，从中共中央与地方关系，进行澳门个案研究，探讨澳门回归前后所面临的问题，以了解中共「一国两制」下的政治制度与发展是否可行，以及未来可能的发展趋势方向及展望。

Ince kicked off his managerial career as a player/coach at Swindon Town just over two years ago, before moving on to League Two side Macclesfield Town whom he saved from relegation.

因斯明天将在埃伍德公园球场迎战曼联，这是他成为主帅后遭遇到的最严峻的考验、他说道：谁也不知道未来会发生什么事情。

Both the new peniculus 1 and the old haplokinety separated at the telophase.The two germinal rows germinal rowsfor both the daughter cells appeared almost at the same time;(2) The macronucleus became shorter and thicker, finally oblate during the division of the cell. Then the macronucleus restored its original shape, band-like form. The micronucleus were divided into two before the macronucleus division;(3) The original scopula and stalk contributed to the old cell. The new cell formed scopula gradually after the cell division.

同时，新仔虫的第一咽膜(P′1)也开始由老单毛基索复制，并在细胞分裂后期与老结构分离；(2)大核在虫体分裂过程中由长带状逐渐缩短变粗至扁圆形，于虫体即将分开时迅速拉长，然后分裂为二个新大核；小核分裂先于大核，在两仔虫口纤毛器即将分开时完成；(3)原帚胚及柄归属老仔虫，新仔虫的帚胚在虫体分裂后逐渐形成，柄内肌丝则在柄鞘形成后逐渐长出。

Maurice Maeterlinck, a Belgian poet and playwright, alighted at Hoboken, New Jersey, with his wife, her parents, 32 pieces of luggage, two Pekinese dogs and two parakeets. Customs officials kept the birds.

比利时诗人和剧作家莫里斯·梅特林克和他的妻子、父母，在新泽西州的霍博肯放下了32件行李、两只京巴狗，和两只后来被海关没收的长尾鹦鹉。

Maurice Maeterlinck, a Belgian poet and playwright, alighted at Hoboken, New Jersey, with his wife, her parents, 32 pieces of luggage, two Pekinese dogs and two parakeets.

古根海姆是一位富有的艺术收藏家，与马克思·恩斯特[7 ]结婚，最终将所有藏品留给了以她叔叔命名的所罗门·R·古根海姆博物馆。

An introduction for forward topology multiple output DC/DC converter is made. A brief introduction was made to the two secondary side control technique, using magnetic amplifier and secondary side PWM regulator. And the differences between the two methods are compared.

摘 要：介绍了正激式DC/DC多路输出电源拓扑，简单介绍了两种精确调节技术：利用磁放大器进行后级调节和次级同步调节技术实现精确输出，并比较了其各自的优缺点。

Because of the two sets of independent magnetic deflection systems the full screen image composes two separate unit images.

双峰式显示管采用了两组相互独立的磁偏转系统，因此它显示的整幅图像是由两幅单元图像拼接而成。

The most important among them are: opera The Devils of Loudun (1968-69), Utrenya (1970), cantata Cosmogonia (written in 1970 for the United Nations), De Natura Sonoris No.2 (1971), Canticum Canticorum Salomonis (1973), Magnificat (1973), his second stage work Paradise Lost, Te Deum (1979/80), Requiem (1984), opera The Black Mask(1986), opera King Ubu (1991), Benedicamus Domino (1992), Seven Gates of Jerusalem (1996), Credo (1998) besides six symphonies, two violin concertos, two cello concertos and a viola concerto and many chamber music works.

从60年代以来，潘德列茨基创作了大量作品，其中最重要的有合唱与管弦乐作品《最后审判日》、《乌特伦亚》、《宇宙演化》、《所罗门之歌》、《圣母颂》、《感恩赞》、《波兰安魂曲》、《耶路撒冷的七座门》，歌剧《劳敦的魔鬼》、《失乐园》、《黑面具》、《乌布王》，管弦乐《声音的性质》以及六部交响曲、两部小提琴协奏曲、两部大提琴协奏曲、中提琴协奏曲和大量室内乐作品。

Magnon needed two children; the Thenardiers had two.

马侬姑娘急需两个孩子，德纳第妈妈恰有两个。

We are in a good position to meet your requirements.

我们完全可以满足你方的需求。

We are all pervade d with a sense of disaster.

我们普遍有大祸降临的感觉。