【正文】 課題解決其控制機(jī)構(gòu)技術(shù)問(wèn)題所采用的技術(shù)方案是：用一對(duì)互成一定角度的硅光電池將太陽(yáng)光轉(zhuǎn)變?yōu)榕c光強(qiáng)成正比的兩路電信號(hào)，兩個(gè)硅光電池中與太陽(yáng)光夾角較小的一個(gè)，產(chǎn)生的電信號(hào)較強(qiáng)，與太陽(yáng)光夾角較大的一個(gè)，產(chǎn)生的電信號(hào)較弱，當(dāng)兩個(gè)硅光電池與太陽(yáng)光夾角相同時(shí)，產(chǎn)生的電信號(hào)相等。同時(shí)采用單電機(jī)多維控制技術(shù)，實(shí)現(xiàn)由一臺(tái)電機(jī)控制完成垂直和水平兩個(gè)自由度跟蹤運(yùn)動(dòng)，可降低跟蹤系統(tǒng)能耗和成本。三、技術(shù)可行性本項(xiàng)目技術(shù)采用北京印刷學(xué)院張博士專利技術(shù)，一次性全部買斷形式實(shí)施。 太陽(yáng)能生產(chǎn)廠家目前有很多家，目前都集中在此產(chǎn)業(yè)上游產(chǎn)品太陽(yáng)能電池上，目前國(guó)內(nèi)基本飽和，但是下游具體應(yīng)用領(lǐng)域在國(guó)內(nèi)才剛剛開始。會(huì)議決定，到2020年中國(guó)單位國(guó)內(nèi)生產(chǎn)總值二氧化碳排放比2005年下降40%—45%。2009年國(guó)家出臺(tái)的政策將推動(dòng)國(guó)內(nèi)太陽(yáng)能發(fā)電市場(chǎng)發(fā)展，在我國(guó)政府強(qiáng)有力的政策引導(dǎo)下，光伏產(chǎn)業(yè)不僅讓國(guó)內(nèi)企業(yè)看到了機(jī)遇，而且已經(jīng)吸引了世界的目光?！　?008下半年以來(lái)，金融風(fēng)暴危及到中國(guó)，讓光伏企業(yè)深受影響：訂單減少，多晶硅價(jià)格下降。在“光明工程”先導(dǎo)項(xiàng)目和“送電到鄉(xiāng)”工程等國(guó)家項(xiàng)目及世界光伏市場(chǎng)的有力拉動(dòng)下，我國(guó)光伏發(fā)電產(chǎn)業(yè)迅猛發(fā)展。中國(guó)蘊(yùn)藏著豐富的太陽(yáng)能資源，太陽(yáng)能利用前景廣闊。當(dāng)電力、煤炭、石油等不可再生能源頻頻告急，能源問(wèn)題日益成為制約國(guó)際社會(huì)經(jīng)濟(jì)發(fā)展的瓶頸時(shí)，越來(lái)越多的國(guó)家開始實(shí)行“陽(yáng)光計(jì)劃”，開發(fā)太陽(yáng)能資源，尋求經(jīng)濟(jì)發(fā)展的新動(dòng)力。他們估計(jì)，2009年因大環(huán)境影響，太陽(yáng)能行業(yè)增速將大大下降，但仍將保持約10%增長(zhǎng)的增速，2009年太陽(yáng)能電池產(chǎn)量將長(zhǎng)56%。我國(guó)有豐富的太陽(yáng)能資源，為大力發(fā)展太陽(yáng)能太陽(yáng)能發(fā)電提供了有利條件,為從戰(zhàn)略上徹底改善能源結(jié)構(gòu)和能源的可持續(xù)發(fā)展提供了有利條件。中國(guó)天然氣的進(jìn)口量也在逐年增加。面對(duì)不斷增長(zhǎng)的需求，我國(guó)石油對(duì)外依存度不斷攀升，所面臨的石油風(fēng)險(xiǎn)也越來(lái)越大。，%。煤炭在我國(guó)能源結(jié)構(gòu)中比例超過(guò)2/3，而比較清潔的化石燃料（如石油和天然氣）比例較小，與世界能源結(jié)構(gòu)形成鮮明對(duì)照。2006 億噸標(biāo)煤，比2005 %。太陽(yáng)能技術(shù)近年應(yīng)用越來(lái)越廣泛，太陽(yáng)能產(chǎn)業(yè)已經(jīng)成為新能源市場(chǎng)中成長(zhǎng)速度最快的領(lǐng)域?？梢娞岣咛?yáng)能接收效率對(duì)整個(gè)行業(yè)重要程度。如果讓接收設(shè)備全天與太陽(yáng)光始終保持垂直，理論計(jì)算表明：定向跟蹤的使用與常規(guī)的非定向跟蹤裝置相比，可使太陽(yáng)能采集效率提高25%以上。本項(xiàng)目重點(diǎn)依托自己專有核心技術(shù)自動(dòng)跟蹤及控制電路生產(chǎn)各種型號(hào)路燈、草坪燈等。太陽(yáng)能路燈系統(tǒng)有負(fù)載部分（也就是說(shuō)的光源，一般用的是led的光源），太陽(yáng)能電池板（發(fā)電部分），蓄電池（儲(chǔ)電部分），控制器（控制器電路的部分），燈桿，和附件。同時(shí)采用單電機(jī)多維控制技術(shù)，實(shí)現(xiàn)由一臺(tái)電機(jī)控制完成垂直和水平兩個(gè)自由度跟蹤運(yùn)動(dòng)，可降低跟蹤系統(tǒng)能耗和成本。 it was a wonderful journey of discovery. The largest dictionary in the world is the Oxford English Dictionary, or OED for short. The idea for this dictionary came from an important meeting in Britain in 1857. Twentytwo years later, Oxford University asked James Murray to be the editor of its new dictionary.THE OXFORD ENGLISH DICTIONARY When people use words and expressions different from the “standard language”, it is called a dialect. American English has many dialects, especially the Midwestern, southern, African American and Spanish dialects. Even in some parts of the USA, two people from neighbouring towns speak a little differently. American English has so many dialects because people have e from all over the world.STANDARD ENGLISH AND DIALECTS Finally by the 19th century the language was settled. At that time two big changes in English spelling happened: first Samuel Johnson wrote his dictionary and later Noah Webster wrote The American Dictionary of the English Language. The latter gave a separate identity to American English spelling. American Amy: Yes. I’d like to e up to your apartment.t speak the same kind of English. Look at this kind of example:At the end of the 16th century, about five to seven million people spoke English. Nearly all of them lived in England. Later in the next century, people from England made voyages to conquer other parts of the world and because of that, English begin to be spoken in many other countries. Today, more people speak English as their first, second or a foreign language than ever before.Unit 2 Living in peace, Hawaiians have developed a third sign of friendship. This personal friendship is shown by giving leis to one another. The lie, a string of flowers, is put over a friend’s neck. Then the friend is given a kiss on cheek. Visitors to the islands are also given lies. When they hear aloha, visitors begin to feel at home. Aloha also means “goodbye”, so visitors will hear it again when they leave. It can also mean “our hearts singing together”. Perhaps this is how most visitors will remember their new friendship.Every culture has its own ways to show friendship. On the islands of Hawaii, friendship is part of the “aloha spirit”. In the language of the Hawaiians who first settled the islands long ago, aloha had a very special meaning. That is “to be with happiness”.When we arrived at Prinsengracht, we went quickly upstairs and the hiding place. We closed the door behind us and we were alone. Margot had e faster on her bicycle and already waiting for us. All the rooms were full of boxes. They lay on the floor and the beds. The little room was filled with bedclothes. We had to start clearing up at once, if we wished to sleep in fortable beds that night. Mummy and Margot were not able to help. They were tired and lay down on their beds. But Daddy and I, the two “helper” of the family, started at once.Your, it was the first time in a year and a half that I’d seen the night face to face….I wonder if it’s because I haven’t been able to be outdoors for so long that I’ve grown so crazy about everything to do with nature. I can well remember that there was a time when a deep blue sky, the song of the birds, moonlight and flowers could never have kept me spellbound. That’s changed since I was here.Thursday 15th June 1944 Anne lived in Amsterdam in Netherlands during Would WarⅡ.Her family was Jewish so they had to hide or they would be caught by the German Nazi .She and her family hid away for nearly twentyfive months before they were discovere