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ResultsOne hundred and thirty-one kinds of chemical constituents in micro-milling of Poria Cocos were separated ; of which sixty-seven compounds representing 51.145% of the oil were characterized. Relative contents that were more than 2% were determined as Nonanal 2.058%,Camphor 2.401%,2,3-dimethyl Decalin 3.819%,trans-Nerolidol 2.266%,Farnesol 3.322%,α-Cedrol 7.936%.

结果茯苓超微粉中分离出131个成分，鉴定出67个化学成分，占挥发油总量的51.145%，其中相对百分含量大于2%的分别确定为壬醛Nonanal 2.058%；樟脑Camphor 2.401%；2，3-二甲基萘烷 2，3-dimethyl Decalin 3.819%；反橙花叔醇trans-Nerolidol 2.266%；金合欢醇 Farnesol 3.322%；α-柏木醇α-Cedrol 7.936%。

It was eight-thirty, the moon was riding full and high over the needle of the Trans America building, and the interior of the Shiratori was as empty as a desert ghost town.

它是八 -三十，月亮正在骑在 Trans 美国建筑物的针上全部和高度，而且 Shiratori 的内部是像一个荒癈的废弃市镇一样的空。

Two novel"black"dyes KRu〓(ttp-COOH= 4'-p-COOH-phenyl-2, 2', 6', 2-tpy) and trans-Ru (4, 4'-dcbpy)〓〓 were synthesized, their photophysical properties in solutions and photo-electric properties adsorbed on the surface of nanocrystalline TiO〓 were studied.

研究了两个"黑色"染料trans-Ru(4，4'-dcbpy)〓〓和KRu〓(ttp-COOH＝4'-p-COOH-phenyl-2，2'，6'，2-tpy)的光物理性质及其在纳晶TiO〓薄膜电极上的光电转换性质，二者在红光区的光谱响应范围均比cis-Ru(4，4'-dcbpy)〓〓的宽，能吸收大部分的太阳光，确实在长波区增加了光谱的敏感性。

Objective To investigate the effect of excessive all-trans retinoic acid on mouse embryonic palatal fusion and the mechanism.

目的探讨视黄酸(all-trans retinoic acid，atRA)对胎鼠腭突融合的影响及其作用机制。

We discovered that the best stereoselectivity of the Pictet-Spengler (cis/trans=92:8) was obtained, when the reaction of D-tryptophan methyl ester II-33 with piperonal II-34 in acetic acid was catalyzed by benzoic acid at room temperature.

我们发现室温下在冰醋酸中，D-色氨酸甲酯II-33和胡椒醛II-34在苯甲酸催化下，发生Pictet-Spengler反应的立体选择性最高， cis：trans的比例为92： 8。

The Pictet-Spengler reaction of D-tryptophan methyl ester hydrochloride II-42 with piperonal II-34 in various solvents was extensively studied. The best stereoselectivity (cis/trans=99:1) was obtained using nitromethane or acetonitrile as the solvent.

我们研究了在不同溶剂中，D-色氨酸甲酯盐酸盐II-42和胡椒醛II-34发生的Pictet-Spengler反应的立体选择性，发现当分别用硝基甲烷和乙腈做溶剂时反应的立体选择性达到最高， cis：trans的比例为99： 1。

Results showed that antioxidant activity of Dunaliella salina was similar to all-trans-carotene.

结果显示，杜莎藻拥有与all-trans-β-carotene相近的抗氧化性。

The present invention constructs anenterous adenovirus carrying trans-activator expression cassette and anticancer gene expression cassette.

本发明构建了携带有反式作用元件(trans-activator，TA)表达盒以及抗癌基因表达盒的无肠腺病毒或AAV。

E. methyl jasmonate +methyl salicylate, MeJA +cis-hexenal, MeJA +trans-hexenal, MeJA +benzothiazole, and then the induced activities of three defensive enzymes including peroxidase, polyphenol oxidase and phenylalanine ammonia lyase were measured.

以1年生合作杨扦插苗为试验材料，利用茉莉酸甲酯分别与水杨酸甲酯、顺式己烯醛(cis-hexenal)、反式己烯醛(trans-hexenal)和苯骈噻唑混合的4种挥发物熏蒸合作杨叶片，检测过氧化物酶、多酚氧化酶及苯丙氨酸解氨酶3种防御酶的活性变化。

A new organic compound, trans-2--5-dimesitylborylthiophene (abbreviated as DMASBT, 5) with dimesitylboryl, dimethylamino and styryl-thiophene as electron acceptor, electron donor and conjugate bridge respectively, was synthesized. Its crystal structure determined by X-ray diffraction method indicates that the B-C bond between B atom and it bridge is obviously shorter than those of between B atom and mesityl groups. This remarkably strengthened B-C bonding can be regarded as an evidence of additional p-7t conjugation between the B atom and n bridge.

合成了以含硼基团为电子受体，以二甲胺基为电子给体，以苯乙烯基噻吩为共轭桥的新化合物2-[（4'-N，N-二甲胺基）苯乙烯基]-5-二米基硼-噻吩 trans-2-[(4'-N， N-dimethylamino) styryl]-5-dimesitylboryl-thiophene（简写为DMASBT，5）。X射线衍射方法测定其单晶结构表明，硼原子与π共轭桥之间的硼碳键相对于其它的硼碳键明显缩短，硼与π共轭桥之间存在除了σ键之外的p-π共轭作用。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。