少量的

The photocycloaddition of 1-naphthonitrile (1-NpCN) and 2,3-dimethyl-2-butene in cyclohexane or benzene gave cyclobutane 3 primarily,but that of 2-NpCN gave azetine 6 asthe major and cyclobutane 5 as the minor product in low conversion photolysis.

在低转化光解情况下，1-萘甲腈(1-NpCN)和2，3-二甲基丁烯-2在环已烷或苯中的光环加成反应主要得到环丁烷3，但2-NpCN主要得到氮杂环丁烯6和少量的环丁烷5，三氟醋酸量增加抑制1-NpCN和DMB的光环加成反应，表明TFA与基态及单激发态1-NpCN生成非光反应的复合物，它也淬灭(1-NpCN-DMB)激基复合物。

The photocycloaddn. of 1-naphthonitrile (1-NpCN) and 2,3-dimethyl-2-butene in cyclohexane or benzene gave cyclobutane I primarily, but that of 2-NpCN gave azetine II as the major and cyclobutane III as the minor product in low conversion photolysis. The photocycloaddn. of 1-NpCN with DMB is retarded by increasing amts. of trifluoroacetic acid which is shown to form non-photoreactive complexes with ground state as well as with singlet excited state 1-NpCN. It also quenches the *(1-NpCN-DMB) exciplex.

在低转光解情况下，1-萘甲腈(1-NpCN)和2，3-二甲基丁烯-2在环已烷或苯中的光环加成反应主要得到环丁烷3，但2-NpCN主要得到氨杂环丁烯6和少量的环丁烷5，三氟醋酸量增加抑制1-NpCN和DMB的光环加成反应，表明TFA与基态及单激发态1-NpCN生成非光反应的复合物，它也淬灭^*(1-NpCN-DMB)激基复合物。

However, if this reaction was carried out at low temperature, methoxy groups monosubstituted and disubstituted complexes 14a and 13a were isolated as major products, and only a little of carborane cage opened complexes were obtained.

而在低温下反应，得到的是甲氧基单取代的产物14a和双取代的13a，以及少量的开笼产物。

As soon as the child has got any teeth, and about this period one or two will make their appearance, solid farinaceous matter boiled in water, beaten through a sieve, and mixed with a small quantity of milk, may be employed.

一旦孩子有没有牙齿，有关这一时期的一个或两个将使它们的外观，扎实farinaceous事项煮沸的水，殴打通过筛，并混有少量的牛奶，可受聘。

X-ray diffraction experiments indicated that the films consisted of g-C3N4 and β-C3N4, and the graphitic form carbon nitride was the main component of the film.

IR光谱证实了薄膜中碳氮化合物的形成，而XRD的检测结果表明，类石墨相g-C3N4是碳氮薄膜中的主要成分，同时有极少量的β-C3N4晶相生成。

Meanwhile, in the CA3 area of hippocampus in NS group, a small amount of N-Cadherin positive cells were visible and were slightly stained. Compared with NS group, in PTZ seizure group, N-Cadherin positive cells had a marked increase in area CA3 and dentate hilus (P.01), but they were strongly inhibited in PDTC group (P.05). There was no correlation between the expressions of N-cadherin, Timm-stained granules and between the age of rats with seizure.

同时，NS组14天和28天大鼠海马CA3区可见少量的N-Cadherin阳性细胞，着色不深；PTZ致惊组海马CA3和齿状回门区的N-Cadherin阳性细胞与NS组相比明显增多（P＜0.01），PDTC预处理后相同区域内N-Cadherin阳性细胞较PTZ致惊组明显减少（P＜0.05）。N-Cadherin与Timm染色颗粒的表达结果与惊厥鼠的日龄并无关联性。

A small and gradually TW was a physiological process accompanied by ones all life, but severe TW could cause a series of pathological changes between tooth and dentition, occlusion and articulation, the maxillomandibular relation and masticatory muscles. TW can affect the healthy between mastication and all correlated tissue.

少量的、逐渐的牙齿磨耗是伴随一生的生理过程，而重度磨耗可以引起牙与牙列、与咬合、颌间关系与颌周肌肉、颞下颌关节等发生一系列病理变化，从而影响到咀嚼功能和各相关组织的健康。

And the conditions in cell suspension culture of Mikania micrantha were studied. The results showed that sucrose was the compatible carbon sucrose, and 30g/L sucrose concentration can satisfy the growth of Mikania micrantha cell; ammonium was absorbed under different sucrose concentration that haven't demonstrated significant specificity, and was completely absorbed on the lag phase and the early logarithmic phase; while nitrate was mainly absorbed on logarithmic phase. The density-dependent of Mikania micrantha cell starting to grow and density-inhibited of cell growth were proposed, the fittest inoculating quantity of Mikania micrantha in cell suspension culture was 40g/L.

并对微甘菊细胞悬浮培养条件进行研究，结果表明，微甘菊细胞生长适宜的碳源是蔗糖，并且较合适的蔗糖浓度为30g／L；在不同蔗糖浓度下氨基氮的吸收差别不大，氨基氮在迟滞期和对数期前期已基本消耗完毕，对数期生长主要利用硝基氮，因而提出，在微甘菊细胞液体悬浮培养中，氮源可以采用初始低氨基氮浓度，对数期中间维持高硝基氮，而且对数期中逐步流加少量的氨基氮；微甘菊细胞迟滞期分裂启动存在密度依赖现象，对数期生长存在密度抑制现象，最适接种量为40g／L。

In order to reduce the cost for formulating lubricating oil, a small fraction of paraffinic base oil can be added into naphthenic base oil as far as the property of lubricating oil can meet the specification.

因此，为了减小润滑油的生产成本，可以在满足润滑油性能的基础上在所用的环烷基基础油中加入少量的石蜡基油。

It has been reported that reaction under mild thermal conditions of 110 ℃ even with the exsistence of little stannous octoate as catalyst can avoid side reaction.

据报道，在110℃的温和的热反应条件下，甚至在少量的催化剂的存在下，副反应也可以避免。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。