【正文】 Lesson77 A successful operation 一例成功的手術(shù) factory where the crop is processed. This last scene shows you what will happen at the end of the harvest : the famous Calabrian macaronieating petition ! Signor Fratelli, the present champion, has won it every year since 1961. And that ends our special bulletin for today, Thursday, April 1st. We are now returning you to the studio.39。macaroni stalks. The whole village has been working day and night gathering and threshing this year39。 said the voice of the television announcer,39。39。 in the snow. Fortunately, a pilot saw the signal and sent a message by radio to the nearest town. It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash. lay thick on the ground. The woman knew that the nearest village was miles away. When it grew dark. she turned a suitcase into a bed and put the children inside it, covering them with all the clothes she could find. During the night, it got terribly cold. The woman kept as near as she could to the children and even tried to get into the case herself, but it was too small. Early ,next morning she heard planes passing overhead and wondered how she could send a signal. Then she had an idea. She stamped out the letters39。 SOS 呼救信號Well, I39。 Oh, is it ?39。 t be too hard on us. I39。said Rockwall,39。39。t read !39。 I39。Now you gut out of here, all of you!39。Meanwhile, two other actors, Rockwall Slinger and Merlin Greeves, had carried two large food baskets to a shady spot under some trees. When they had all made themselves fortable, a stranger appeared. He looked very angry. t we e more often ?39。 Brinksley Meers agreed. 39。 It couldn39。 said Gloria Gleam. 39。An ancient bus stopped by a dry river bed and a party of famous actors and actresses got off. Dressed in dark glasses and old clothes, they had taken special precautions so that no one should recognize them. But as they soon discovered, disguises can sometimes be too perfect.s fishing, or eight hours in a cinema seeing the same film over and over again, is usually as far as they get. They have all been put to shame by a boy who, while playing truant, travelled 1600 miles. He hitch hiked to Dover and, towards evening, went into a boat to find somewhere to sleep. When he woke up next morning, he discovered that the boat had, in the meantime, travelled to Calais. No one noticed the boy as he crept off. From there, he hitchhiked to Paris in a lorry. The driver gave him a few biscuits and a cup of coffee and left him just outside the city. The next car the boy stopped did not take him into the centre of Paris as he hoped it would, but to Perpignan on the FrenchSpanish border. There he was picked up by a policeman and sent back to England by the local authorities. He has surely set up a record for the thousands of boys who dream of evading school.Lesson73 The recordholder 紀錄保持者s footsteps many years later, Sir Malcolm39。表11 主要工藝設備配套一覽表設備名稱 規(guī)格及型號 數(shù)量 備注破碎機2504002臺 斗式上料車專用2臺 粉碎機2臺拌料機2臺原料輸送機2臺全自動砌塊成型機QT615型2臺多功能震壓式液壓制磚機390X190X190mm2臺人力送料車5部其他附屬設備 若干37hour, 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 told that a mistake had been made. His average speed had been 301 miles per hour. Since that time, racing drivers have reached speeds of over 400 miles an hour. Following第三節(jié) 項目實施進度安排本項目籌備期3個月；編制《項目備案報告》1個月；項目立項1個月；規(guī)劃設計2個月；建設施工期為10個月；設備采購、安裝調(diào)試1個月；總共為1年半時間。其中：主體土建工程2000㎡：（1）坯料調(diào)制車間300㎡；（2）產(chǎn)品成型車間350㎡；（3）焙燒車間600㎡；（4）職工宿舍350㎡；（5）辦公用房200㎡；（6）食堂等設施200㎡。主體土建工程：（1）坯料調(diào)制車間；（2）產(chǎn)品成型車間；（3）焙燒車間；（4）職工宿舍；（5）辦公用房；（6）食堂等設施輔助工程設施：（1）進出道路；（2）廁所；（3）其 他。這給墻材企業(yè)帶來了發(fā)展契機。月30黏土實心磚作為推進墻體材料革新的突破口，確定了170個大中城市在2003巨大的需求，給新型墻材市場無疑帶來了巨大的發(fā)展機遇。加上拆遷重建的面積，新建住宅面積逾200年將達57萬人，新增住房面積150年，城鎮(zhèn)居民人均住房面積將大于30m2。切割、澆注和模具的大型化是加氣混凝土的發(fā)展方向。建筑砌塊向多品種、大規(guī)模、自動化方向發(fā)展。生產(chǎn)設備向大型化、生產(chǎn)向規(guī)?；?、生產(chǎn)過程向自動化發(fā)展；勞動生產(chǎn)率大幅度提高；生產(chǎn)節(jié)能、建筑節(jié)能與再生資源的開發(fā)利用并舉；充分利用廢棄物生產(chǎn)建筑材料,使粉煤灰、煤矸石等工業(yè)廢渣、建筑垃圾和生活垃圾等廢棄物得到有效利用。建筑砌塊持續(xù)增長，并向系列化方向發(fā)展，產(chǎn)品以混凝土砌塊為主且向空心化發(fā)展，裝飾砌塊和多功能、易施工的砌塊也將得到發(fā)展；質(zhì)量輕、強度高、保溫性能好的功能性復合墻板將迅速發(fā)展。以黏土為原料的產(chǎn)品大幅度減少，并向空心化和裝飾化方向發(fā)展。8盧村鄉(xiāng)1612楊灘鄉(xiāng)27柏墊鎮(zhèn)1231683214墻體材料基金減免現(xiàn)象現(xiàn)重，調(diào)控職能沒有充分發(fā)揮，加上使用粘土燒結(jié)磚的傳統(tǒng)習慣，大大阻礙了我縣新型墻體材料產(chǎn)業(yè)的發(fā)展。第二節(jié) 廣德縣新型墻體材料發(fā)展的現(xiàn)狀目前我縣共有墻材生產(chǎn)企業(yè)76家，其中：燒結(jié)粘土類墻體企業(yè)73家，（10億塊），占用土地約4000畝，取土用地1400畝，年能耗原煤5萬噸；新型墻體材料生產(chǎn)企業(yè)3家，年設計生產(chǎn)能力僅為4萬立方米左右。)僅有4～5其現(xiàn)狀可歸納為：生產(chǎn)規(guī)模小，產(chǎn)品質(zhì)量不穩(wěn)定，自動化程度低，勞動強度高。目前國內(nèi)新型墻體材料行業(yè)，在國家政策的引導和支持下，有了突飛猛進的發(fā)展，引進國外的先進產(chǎn)品及技術(shù)的國產(chǎn)化方面也取得了很大的成績。國外比較常用的墻體材料。主要產(chǎn)品有：灰砂磚、灰砂型加氣砼砌塊和板材、混凝土砌塊、石膏砌塊、復合輕質(zhì)板材、燒結(jié)制品等。有的產(chǎn)品符合節(jié)能節(jié)土的原則，但目前暫時在施工方法或配套器具還不完善，就需要我們?nèi)ネ晟崎_發(fā)市場，根據(jù)企業(yè)自身的情況做決策。盡管各發(fā)達國家情況不同,但其共同特點是：走節(jié)能、節(jié)土、低污染、輕質(zhì)、高強度、配套化、易于施工、勞動強度低的發(fā)展道路。 墻體材料的生產(chǎn)和應用有很強的地域性，其發(fā)展受到各國(地區(qū))第一節(jié) 國內(nèi)外的幾種主導產(chǎn)品這種說法一方面是國內(nèi)墻材應用的真實寫照，另一方面也說明墻材革新有著巨大的潛力。由于這些材料我國沒有普遍使用，仍然被稱作新型墻體材料。實際上，新型墻材已經(jīng)出現(xiàn)了幾十年，早在上世紀五、六十年代，建筑砌塊就在歐美各國普遍使用；而建筑板材，在上世紀九十年代初日本就占到了墻材總量的64%用在有酸性介質(zhì)侵蝕的建筑部位，也不宜用于經(jīng)常受高溫影響的建筑物在常溫施工時，砌塊應提前澆水潤濕，冬季施工時則不需澆水潤濕。國家建材局標準JC238－91《粉煤灰砌塊》規(guī)定，按砌塊的抗壓強度分為MU10和MU13兩個強度等級；按砌塊尺寸偏差、外觀質(zhì)量及干縮性能分為一等品（B）和合格品（C）兩個質(zhì)量等級。 粉煤灰硅酸鹽中型砌塊（簡稱為粉煤灰砌塊）以粉煤灰、石灰、石膏和骨料等為原料，經(jīng)加水攪拌、振動成型、蒸汽養(yǎng)護而制成的密實砌塊。、。按砌塊內(nèi)孔洞排數(shù)分為：實心（O）、單排孔（1）、雙排孔（2）、三排孔（3）和四排孔（4）五類。輕集料混凝土小型砌塊（LHB）由水泥、輕集料、普通砂、摻合料、外加劑，加水攪拌，灌模成型養(yǎng)護而成。國家標準GB8239－97《普通混凝土小型空心砌塊》；按其尺寸偏差及外觀質(zhì)量分為：優(yōu)等品（A）、一等品（B）及合格品（C）。分為承重砌塊和非承重砌塊兩類。但不能用于建筑物基礎和處于浸水、高濕和有化學侵蝕的環(huán)境（如強酸、強堿或高濃度CO2），也不能用于表面溫度高于80℃的承重結(jié)構(gòu)部位。表6 砌塊是用于建筑的人造材，外形多為直角六面體，也有異形的。不同質(zhì)量等級砌塊的干燥表觀密度值應符合表8的規(guī)定。見表117的規(guī)定。 砌塊的質(zhì)量，按其尺寸偏差、外觀質(zhì)量、表觀密度級別分為：優(yōu)等品（A）、一等品（B）及合格品（C）三個質(zhì)量等級。 鈣質(zhì)材料：石灰硅質(zhì)材料可分別采用、水泥、礦渣、粉煤灰、砂等。并根據(jù)尺寸偏差、外觀質(zhì)量及干燥收縮性質(zhì)分為優(yōu)等品（A）、一等品（B）及合格品（C）三個質(zhì)量等級。 非燒結(jié)蒸養(yǎng)粉煤灰磚（簡稱粉煤灰磚）以粉煤灰、石灰為主要原料，加入適量石膏、外加劑、顏料和集料等，經(jīng)坯料制備、壓制成型、常壓或高壓蒸氣養(yǎng)護而成的實心磚。 避免用于長期受熱高于200℃、受急冷急熱交替作用或有酸性介質(zhì)侵蝕的建筑部位。燒結(jié)空心磚和空心砌塊，孔洞率一般在40%以上，質(zhì)量較輕，強度不高，因而多用作非承重墻，如多層建筑內(nèi)隔墻或框架結(jié)構(gòu)的填充墻等。、。 根據(jù)國家標準GB13545－2003《燒結(jié)空心磚和空心砌塊》的規(guī)定，空心磚和砌塊的規(guī)格尺寸（長