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This topic uses the switching mode is the entire bridge all controls the rectification filter, moreover the power source has also utilized the soft switch technology, causes its loss to reduce obviously, the DC-DC transformation use cuts the wave boosted circuit to realize, the structure is simple, the transfer efficiency is high; Selects the small breakover resistance, the high shutter speed P60N06 tube for the switching valve, to select the quick recovery diode rectification, reduces the reverse breakover time, reduces the loss.

本课题采用的开关方式是全桥全控整流滤波，而且电源还运用了软开关技术，使它的损耗明显降低，DC-DC变换使用斩波升压电路来实现，结构简单，转换效率高；选用小导通电阻、高开关速度的P60N06管为开关管、选用快速恢复二极管整流，减少反向导通时间，降低损耗。

Chang Xiang net is home is the unit such as enterprise or business, government organization the first times to offer the service that need force, difference the major of brigade management and whole technological process of the credit that need force differs brigade to serve a supplier,"We think this pattern company refuses without reason," Lin Dong of president of group of Chang Xiang science and technology expresses, The benefit with the total the directest free service that we provide is, can make enterprise whole differs travel expenses to drop 20% above, cost of the government that need force drops 50% above, reduce poor brigade cash to advance considerably, economic cash flows.

畅翔网是国内第一家为企事业、政府机关等单位提供差旅服务、差旅治理及差旅信贷全流程的专业差旅服务供给商，"我们认为这个模式企业没有理由拒绝，"畅翔科技集团董事长林东表示，"我们提供的一揽子免费服务最直接的好处是，可以使企业整体差旅支出下降20%以上，差旅治理成本下降50%以上，大幅降低差旅现金预支，节省现金流。"

Ram sealing surface than the valve seat to seal a broad margin, and to ensure that the valve is not in use before the sealing of the bottom line and the gate valve seat bottom line sealing surface at the same level, so that the valve in the use of a certain period of time after not even wear Will reduce the need to ensure the sealing surface width.

闸板密封面比阀座密封面宽出一定的余量，并保证阀门在未使用前闸板密封面底线与阀座密封面底线在同一高度，使阀门在使用一定时间后即使磨损也不会减少必须保证的密封面宽度。

Result］ The new buds and petals of I.germanica was proper to be used as explant of tissue culture, with lower browning rate compared with other positions. The well situated tissue block of explant (3 mm×3 mm×3 mm) might reduce browning rate. Adding 0.1%Vc or 0.3% active carbon in medium had obvious effect on preventing tissue browning. The exogenous hormone 2 mg/L 6-BA was easy to lead to brownness turning, and 2 mg/L Kt and 2 mg/L NAA brought less effect to tissue browning. When using disinfectants of alcohol, its dipping time of 5～10 s for explant was the best, with the minimum browning rate. The culture under full illumination condition was liable to induce brownness turning, compared with other cultured conditions, the brownness turning could be restrained effectively by using imitating artificial climate condition for culture.

结果］ 鸢尾的新生芽和花瓣较适宜作组织培养的外植体，与其他部位相比褐变率较低；外植体组织块适中（3 mm×3 mm×3 mm）可降低褐变率；在培养基中加入0.1%Vc或0.3%活性炭对防止组织褐化效果明显；外源激素2 mg/L 6-BA易引发褐变，2 mg/L Kt和2 mg/L NAA对组织褐变影响不大；使用乙醇消毒剂时，对外植体浸泡时间以5～10 s为佳，褐变率最低；全光照条件培养容易诱发褐变，采用仿人工气候条件培养较其他条件培养可有效抑制褐变的发生。

You may abound in the grapes in the afternoon period, to the market to buy some bulk grape prices low in order to reduce costs.

1，您可能会盛产期在下午的葡萄，到市场买了一些散装葡萄价格低，以降低成本。

To encourage developer buy-in we need to lead by example and help reduce the barriers to entry.

要吸引开发者，我们可以用实例来教人上手，并降低门槛。

To reduce the number of cross certifications, a special CA—bridge CA is specially used to build cross certifications with root CAs of every PKI domain. Through bridge CA, to set up trust relationship with other PKI domains, every PKI domain only needs to make cross certification between its root CA with the bridge CA.

但各CA之间相对独立、分散，缺少统一的管理与接口，各CA之间无法连通，信任无法传递，造成了较多的信任孤岛，给基于PKI技术的应用的拓展造成了很大困难，也限制了PKI技术的普及与良性发展。

The product has the following advantages: new aesthetic appearance, light weight; easy to install, flexible assembly and effective to increase the efficiency; to reduce electromagnetic interference; open-end structure, to better address the cable and does not heat the water, not Dust; to save the national resources.

该产品具有以下优点：外形新颖美观、自重轻便；安装方便、组装灵活，有效的提高了工作效率；减少电磁干扰；开放式的结构，更好地解决了电缆的散热且不积水、不积尘；节约了国家资源。

"In making chocolate, the kernels of fermented and roasted cacao bean s are ground into a paste called chocolate liquor, which may be hardened in molds to form baking chocolate, pressed to reduce the cocoa butter content and then pulverized to make cocoa powder, or mixed with sugar and additional cocoa butter to make sweet chocolate."

巧克力制做工序是将可可豆的种仁发酵和焙烤，再磨成糊状，称巧克力浆，然后在模型内凝固成苦巧克力；加压除去所含的可可脂，随后磨成可可粉；或加糖及可可脂即可制成食用巧克力。

Chinese New Year at the beginning of 2003, the Beijing Municipal Real Estate II, the three-tier market in a series of policies favorable news: Gongfang the right to use open market transactions, the abolition of已购公房listing, cancellation of the original property units involved in the distribution of proceeds to reduce the land back the ratio of gold to sell to buy new契税减免so old.

农历新年在2003年初，北京市房地产二，三级市场的一系列政策有利于新闻：公房使用权交易的公开市场，取消已购公房上市，取消了原来的物业单位参与收益分配，以减少土地回到黄金的比例出售给购买新契税减免老。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。