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Peak of Asia-Pacific of APEC medium and small businesses was held to be able to go up a few days ago, the entrepreneur of most heavyweight all expresses, do not decrease as the economic depression trend of dollar economy area, asian medium and small businesses is facing the prospect that does not stabilize extremely, be about to greet cold winter.

在日前召开APEC中小企业亚太峰会上，多数重量级的企业家均表示，随着美元经济区的经济衰退趋势不减，亚洲中小企业面临着极其不稳定的前景，即将迎来寒冷的冬天。

According to the boundary relations of the electromagnetic field, and based on the phenomena of double refraction and double reflection in crystals, the reflectivity and transmissivity are deduced at boundary when an extraordinary beam is incident from an isotropic medium upon a crystal or from a crystal to an isotropic medium with optical ax.

为分析非常偏振光在晶体表面的能量损耗，给出一种求解反射率和透射率的方法，即根据电磁场的边值关系以及晶体的双折射和双反射现象，求解晶体光轴在入射面内时，非常偏振光从各向同性介质入射到晶体和从晶体出射到各向同性介质两种情况的反射率和透射率的方法，并给出反射率和透射率的解析解，同时得到对于晶体光轴在入射面内的情况，光轴的取向对非常偏振光反射率的大小几乎没有影响，但对产生全反射的临界角θc影响较大的结论。

Taking the stem from three varieties of Dracaena fragrans as a material, the effect of the factors such as the plant growth regulators, the different basal culture medium, silver nitrate, and the cultivation medium upon tissue culture regeneration were investigated.

以3个也门铁品种（金心也门铁、金边也门铁和普通也门铁）茎段为材料，研究了植物生长调节物质、基本培养种类、AgNO3、栽培基质等因素对其离体再生的影响。

The apical buds and axillary buds of Dracaena cambodiana Pierre ex Gagnep. were inoculated on MS medium containing 1 mg/L BA, 0.1 mg/L NAA, 100 mg/L PVP and 30 g/L sucrose for inducing shoots. After cultured for 40~50 d, the shoots bourgeoned. They were then transferred onto MS medium supplemented with 2 mg/L BA, 0.5 mg/L KT and 30 g/L sucrose for inducing clustered buds. After 25~10 d, the clustered buds formed. The proliferation rate of the clustered buds was 300%~500% per month.

以海南龙血树的顶芽和侧芽作为外植体，把其接种于MS+BA 1 mg/L+NAA0.1 mg/L+PVP100 mg/L+蔗糖30 g/L培养基上培养40~50 d可诱导其腋芽萌发，再把萌发后所形成的新芽切割下来接种于MS+BA 2mg/L+KT 0.5 mg/L+蔗糖30 g/L的培养基上培养25~30 d可诱导形成丛生芽，丛生芽在继代培养过程中每25~30 d可增殖3~5倍。

AIM: To explore the inhibitive effects of ectogenesis nitric oxide on the proliferation of neural stem cells in mice. METHODS: NSCs were cultured in medium containing EGF, and the medium was supplemented with SNP as a donor of NO in vitro.

用含表皮生长因子的条件培养基原代培养NSC，在培养基中加入不同浓度的硝普钠作为NO的体外供体。

According to the relation of the heat capacity, the thermal conductivity, the thermal expansion coefficient and the elastic modulus of the laser medium, the distribution and the variation of the temperature and the thermal stress in laser medium were got.

考虑热容值、热导率、热膨胀系数和弹性模量等与温度的关系，得到激光介质的温度分布和变化，以及热应力的分布和变化。

Fundamental equation of earth induced electromagnetic field is deduced,the relationships between electric and magnetic fields in uniform medium and one-dimension layered medium are established respectively,calculation method of earth surface electric field based on geomagnetic storm data is put forward.

3建立了均匀媒质和一维层状媒质中大地感应电磁场模型，提出了基于磁暴数据和大地电性结构参数的地面感应电场计算方法塑料托盘。

Objective To compare serum-free medium AIMV with standard serum-containing medium in culturing IL-2-activated natural killer cells in vitro.Methods Proliferation,cytotoxicity in vitro and expression of CD11 c of the cells cultured in the two different media were compared.To observe the tumor target cells killed by adˉherent natural killer cellsthrough electroscope.

目的 研究方面比较无血清培养基AIMV与完全培养基对体外细胞因子激活的NK细胞的支持作用方法分别用AIMV及完全培养基培养粘附NK细胞和非粘附NK细胞，比较细胞的增殖能力、杀伤肿瘤细胞的能力、表达粘附分子CD11 c 的能力，并通过电镜对A-NK细胞所杀伤的肿瘤细胞进行形态学观察。

This paper introduces the development and classification of the heat pump, the elementary principle, evaluable target and the p-h chart of the mechanism compressive heat pump; It points out the necessity to design the computer program of refrigeration medium"s thermal character, offers the elementary equation, calculating formula, calculating method and the program frame to calculate the refrigeration medium"s thermal character.

本文根据油田生产实际，研究了油田生产中应用热泵的可行性，给出了具体的设计计算方法及热泵技术在大庆采油二厂南十联合站的应用实例。

Furthermore, supplements of callus induction medium under N6 basic medium,such as concentration of 2,4-D, proline and casein hydrolysate were used to study their effects on the induction frequency,embryogeny and quality of callus,the inhibition of embryo spontaneous shooting.

幼胚在附加4 mg/L 2，4-D且去掉水解酪蛋白和L-脯氨酸的N6改良培养基上，幼芽及根的数量少、出愈率高、愈伤组织质地好，并明显减少了幼胚自发性芽分化的趋势，有利于保持愈伤组织胚性、提高再生植株频率，为玉米自交系幼胚诱导的适宜培养基。

I was just taking her hand, to help her out of a car, and I knew it.

我只是握着她的手，扶她下车，但我知道这一切。

China and South Korea have excoriated Japan over its approval of new school books which they say whitewash the atrocities committed during Japanese occupation, and anti-Japanese protests have been held in Chinese cities. The lingering bitterness over Japan's past imperialism still threatens to mar relations between the big East Asian powers

中国和韩国强烈谴责日本通过新的中学历史教科书，他们认为这一教科书掩盖了日本在其占领期间所犯下的残酷暴行，反日抗议活动在中国数座城市发生，历史上日本帝国主义制造的痛楚无法被忘却，这有可能破坏东亚强国间的关系。