【正文】 s are now trying to discover if this is possible. The spaceship Astra which left the earth a short time ago, will be travelling three hundred miles into space. At a certain point, the Astra will stop for a short time and an astronaut will attempt to leave the stationary spaceship and then return to it. We shall not know whether the experiment has been successful until we have received a radio message. The first message is expected to arrive at 7 o39。Lesson62 After the fire 大火之后Lesson63 She was not amused 她并不覺得好笑s closest friends asked him to make a speech at a wedding reception. This is the sort of thing that Geoffrey loves. He prepared the speech carefully and went to the wedding with Jenny. He had included a large number of funny stories in the speech and, of course, it was a great success. As soon as he had finished, Jenny told him she wanted to go home. Geoffrey was a little disappointed by this but he did as his daughter asked. On the way home, he asked Jenny if she had enjoyed the speech. To his surprise, she said she hadn39。Lesson64 The Channel Tunnel 海峽隧道Lesson65 Jumbo versus the police 小象對警察s hospital. Dressed up as Father Christmas and acpanied by a 39。 of six pretty girls, he set off down the main street of the city riding a baby elephant called Jumbo. He, should have known that the police would never allow this sort of thing. A policeman approached Jimmy and told him he ought to have gone along a sidestreet as Jumbo was holding up the traffic. Though Jimmy agreed to go at once, Jumbo refused to move. Fifteen policemen had to push very hard to get him off the main street. The police had a difficult time, but they were most amused. 39。 said a policeman afterwards, 39。t have to carry him. Of course, we should arrest him, but as he has a good record, we shall let him off this time.39。Lesson66 Sweet as honey! 像蜜一樣甜！Lesson67 Volcanoes 火山 and measure temperatures. Tazieff has often risked his life in this way. He has been able to tell us more about active volcanoes than any man alive. I crossed the street to avoid meeting him, but he saw me and came running towards me. It was no use pretending that I had not seen him, so I waved to him. I never enjoy meeting Bert Dykes. He never has anything to do. No matter how busy you are, he always insists on ing with you. I had to think of a way of preventing him from following me around all morning.Hullo, Bert,39。Fancy meeting you here !39。39。 Bert answered. 39。re not busy doing anything, are you ?39。39。 I answered.39。m going to.. .39。39。 he asked, before I had finished speaking. I lied, 39。m going to the dentist.39。39。ll e with you,39。 There39。waiting room !39。lesson69 But not murder! 并非謀殺！Just one more thing, Mr Eames. Let us suppose that a child suddenly crosses the road in front of you. As soon as I tap on the window, I want the car to be stopped immediately.39。Mr Eames,39。 you have just killed that child !39。lesson70During a bullfight, a drunk suddenly wandered into the middle of the ring. The crowd began to shout, but the drunk was unaware of the danger. The bull was busy with the matador at the time, but it suddenly caught sight of the drunk who was shouting rude remarks and waving a red cap. Apparently sensitive to criticism, the bull forgot all about the matador and charged at the drunk. The crowd suddenly grew quiet. The drunk, however, seemed quite sure of himself. When the bull got close to him, he clumsily stepped aside to let it pass. The crowd broke into cheers and the drunk bowed. By this time, however, three men had e into the ring and they quickly dragged the drunk to safety. Even the bull seemed to feel sorry for him, for it looked on sympathetically until the drunk was out of the way before once more turning its attention to the matador.When you visit London, one of the first things you will see is Big Ben, the famous clock which can be heard all over the world on the . If the Houses of Parliament had hot been burned down in 1834, the great clock would never have been erected. Big Ben takes its name from Sir Benjamin Hall who was responsible for the making of the clock when the new Houses of Parliament were being built. It is not only of immense size, but is extremely accurate as well. Officials from Greenwich Observatory have the clock checked twice a day. On the . you can hear the clock when it is actually striking because microphones are connected to the clock tower. Big Ben has rarely gone wrong. Once, however, it failed to give the correct time. A painter who had been working on the tower hung a pot of paint on one of the hands and slowed it down ! The great racing driver, Sir Malcolm Campbell, was the first man to drive at over 300 miles per hour. He set up a new world record in September 1935 at Bonneville Salt Flats, Utah. Bluebird, the car he was driving, had been specially built for him. It was over 30 feet in length and had a 2500 horsepower engine. Although Campbell reached a speed of over 304 miles per hour, he had great difficulty in controlling the car because a tyre burst during the first run. After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour. However, a few days later, he was第二章 建設項目周圍地區(qū)環(huán)境概況2 建設項目概況、地點及建設單位項目名稱：XXX鐵礦技改擴建工程；性 質(zhì)：技術(shù)改造、擴建；本次技改擴建工程主要由三部分組成：礦山地下開采擴建；選礦廠技術(shù)改 造；硫酸廠擴建改造。礦山開采原有規(guī)模為年產(chǎn)原鐵礦190萬噸，其中XX山礦區(qū)采礦規(guī)模150萬t/a，XX寺采礦規(guī)模40萬t/a。在采出的礦石中，富礦平均品位TFe≥45%，貧礦平均品位TFe≥30%。 ●選礦廠原礦處理能力為220萬t/a。因本礦原礦供不應求，故向外單位外購部分原礦，以滿足生產(chǎn)之需求。XXX鐵礦始建于1976年，距今已有近三十年歷史。因此，導致其產(chǎn)品鐵精礦中鐵的含量低，不能滿足X鋼生產(chǎn)的要求。硫酸廠原有工程存在的主要問題是：SO2轉(zhuǎn)化率低，大約在98%～99%之間，達不到設計要求，導致尾氣中SO2超標排放。其中XX山礦年產(chǎn)250萬t，XX寺礦年產(chǎn)50萬t。%，含硫38%。⑶硫酸產(chǎn)品方案：根據(jù)產(chǎn)品的市場要求，%%兩種硫酸。生產(chǎn)規(guī)模：年產(chǎn)硫酸為6萬t（以100%計）。工作制度：年工作306d，每天3班，每班8h。采礦車間勞動定員387人。設備年運轉(zhuǎn)7446h。即8000h。410m中段以下礦石，經(jīng)新主井提升到地表礦倉；廢石從各中段車場經(jīng)廢石溜井直接下放到755m裝礦水平，經(jīng)新主井提升到地表。410m以下中段高度由70m改為90m，410m以上仍按原有70m中段高度。礦石通過中段溜井下放到340m中段，用20t電機車牽引10m3底側(cè)卸式礦車運到XX山礦石卸載站，經(jīng)現(xiàn)有溜破系統(tǒng)破碎后，下放到590m裝礦水平，經(jīng)新主井提升至地表礦倉。200m以下礦體只設一個中段，中段高度140m（200m～340m）?？觾?nèi)涌水從340m運輸巷道水溝自流到XX山340m車場，匯入到XX山礦區(qū)排水系