【正文】 st by an emphasis 17 on the monalities. But whether inside or outside China, the temptation to sell it for the differences is just too great. S ure, the sumptuous sets and costumes are a big attraction, but the narrative technique has bee－ how shall I put it?－ a bit anglicized, which is necessary for cultural export. Judging by the responses, this legend, which, contrary to the claim of the English trailer, is totally fictitious, has departed from China but not yet landed on American shores. I am a big fan of Ralph Waldo Emerson39。 names and figuring out what to do with them for the brief time each week that I stand in front of them. I do not consider the challenges of learning to live here part of a purposeful life. I consider those issues existential in nature. One of the problems with my life in America was that I felt it had no purpose. I went to work every day and even did what I could to mak e my colleagues39。 he wondered how in the world he came to belong there. Indeed his penning and publishing this essay caused his exmunication from high society and also caused him a lot of legal trouble. The legal trouble came as a result of the fact that he was speaking out against the government. I like to reference such texts from time to time as an example both of the fact that history does repeat itself and that this world is not so big that what applies to one society does not in any way touch another society. On a much smaller scale,Emerson39。s president, who is also a renowned tenor, tells China Daily. During a tour in 1985, he went to a village and met an elderly local man, who told him a story about his friendship with a solider from Shenyang, capital of Northeast China39。s Zhangye city during their journey to Kazakhstan, May 5, 2021. The caravan, consisting of more than 100 camels, three horsedrawn carriages and four support vehicles, started the trip from Jingyang county in Shaanxi on Sept 19, 2021. It will pass through Gansu province and Xinjiang Uygur autonomous region, and finally arrive in Almaty, formerly known as AlmaAta, the largest city in Kazakhstan, and Dungan in Zhambyl province. The trip will cover about 15,000 kilometers and take the caravan more than one year to plete. The caravan is expected to return to Jingyang in March 2021. Then they will e back, carrying specialty products from Kazakhstan A small art troupe founded six decades ago has grown into a household name in the Inner Mongolia autonomous region. In the 1950s, Ulan Muqir Art Troupe was created by nine young musicians, who toured remote villages on horses and performed traditional Mongolian music and dances for nomadic families. The 54yearold was born in Tongliao, in eastern Inner Mongolia and joined the troupe in says there are 74 branch troupes across Inner Mongolia and actors give around 100 shows every year to local nomadic people. I can still recall the days when I toured with the troupe in the early 39。北京：高等教育出版社， 1993 15 趙由才。 ② 設(shè)計計算 惰性 氣體流量為 ? ? hk m olG /% ?????? 121m in1 34% 006 8% 33 %00 343YYL YG m? ??? ? ? ????? ?? m i n1 .1 1 .1 3 3 6 .1 4 3 6 9 .7 5LLGG? ? ? ?? ? ? ? ?? ? ? ?? ? ? ? 吸收劑用量 L=18=（ 3） 吸收塔塔徑的計算 ① 設(shè)計參數(shù) 用清水吸收沼氣中的 H2S， 沼氣的處理量為 1000m3/h，密度 ρG=，用水量為 ，溶液密度看作與水的密度相同， ρL=1000 kg/m3。 相同條件下，氣體密度之比等于氣體相對分子質(zhì)量之比。每月的原料液一次性進入換熱器，加熱后再進入沼氣池進行中溫發(fā)酵，每個沼氣池配一臺換熱器，則原料液流量為 500m3/月，換熱時間為 5h，則原 料 液 的 流量為 105 kg/h。該位置的計算方法如下： ① 計算死氣箱拱的矢高：即池蓋拱頂點到發(fā)酵間的最高液面 O— O位置的距離，如圖 4 所示。 發(fā)酵間的設(shè)計 （ 1） 確定池容 V 稻草和豬糞的年產(chǎn)量為 3000 噸，月產(chǎn)量為 250 噸。 沼氣池體部分設(shè)計計算 設(shè)計參數(shù) （ 1） 氣壓： （即一個標(biāo)準(zhǔn) 大氣壓）為宜。產(chǎn)生的沼氣要經(jīng)過吸收塔吸收才能用，才能達(dá)到排放要求。 各 階段各有其獨特的微生物類群起作用。這對池體強度和燈具、灶具燃 燒效率的穩(wěn)定與提高都有不利的影響。圓筒形結(jié)構(gòu)沼氣池的受力性能好，比相同容積的長方形池表面積小 20%左右，池內(nèi)無死角，容易密封，有利于甲烷菌的活動 ， 以發(fā)揮甲烷菌的產(chǎn)氣作用。甲烷對空氣的重量比是 ，比空氣約輕一半。第一類細(xì)菌叫做分解菌，它的作用是將復(fù)雜的有機物分解成簡單的有機物和二氧化碳 （ CO2） 等 。 項目的背景及建設(shè)的必要性 隨著生活水平的提高和集約式農(nóng)業(yè)的發(fā)展，農(nóng)村固體廢物中畜禽糞便和秸稈的產(chǎn)生量越來越大，不及 時有效的處理將造成農(nóng)村環(huán)境衛(wèi)生的破壞。 水壓式沼氣池設(shè)計任務(wù) （ 1） 設(shè)計題目 水壓式沼氣池設(shè)計 （ 2） 主要設(shè)計任務(wù) ① 水壓式沼氣池尺寸設(shè)計：沼氣池主體容積、高度、直徑、水壓間容積、高度、直徑。 5 3 沼氣池體部分的設(shè)計計算 5 2 厭氧發(fā)酵工藝流程說明 3 設(shè)計任務(wù)和內(nèi)容 6 發(fā)酵原料 6 沼氣發(fā)酵原料的理論產(chǎn)氣量 （ 2） 配套換熱器和吸收塔，保證水壓式沼氣池的溫度比較恒定且能有效回收沼氣中的二氧化碳。沼氣含有多種氣體，主 要成分是甲烷 （ CH4） 。在沼氣成分中甲烷含量為 55%～ 70%、二氧化碳含量為 28%～ 44%、硫化氫平均含量為 %。沼氣每立方米的發(fā)熱量約 千焦，相當(dāng)于 千克柴油或 千克煤炭充分燃燒后放出的熱量。 5 ③ 為便于經(jīng)常進料，廁所、豬圈可以建在沼氣池上面，糞便隨時都能打掃進池。從能量回收的角度，該工藝被認(rèn)為是一種較理想的發(fā)酵工 藝類型。 圖 1 厭氧發(fā)酵三階段 2 厭氧發(fā)酵工藝流程說明 所設(shè)沼氣池采用厭氧發(fā)酵工藝流程 。 設(shè)稻草有 x kg，豬糞則為（ 250x） kg ? ?? ? 25250%% 250%%42 ??? ??? xx xxk 求出 x= 噸 一次性投加的稻草為 噸，豬糞為 噸。農(nóng)村家 用水壓式沼氣池的最大貯氣量以 12小時產(chǎn)氣量為宜，其值與有效水壓間的容積相等。假設(shè)在地面下 6m， 為了避免污染地下水，所以可設(shè) 沼氣池的地下埋深為 5m，在地面以上的部分為 。d ） 總?cè)莘e V=500 m3 直徑 D=（ m） 池蓋曲率半徑 r1=（ m） 矢高 f1=（ m） ② 設(shè)計計算 V0 （ m3） ，儲氣量 VG（ m3） V0=VVmax=500450=50（ m3） VG= VmaxKKG=450? ? =45（ m3） VW=VG，就可求出水壓間的直徑 DW。=2dnA? ???估 = ??? 若用 4 管程，則每管程的管長選用 L=6000mm 由換熱器系列標(biāo)準(zhǔn)初選浮頭式換熱器型號為 管總數(shù) N=188 根，每管程的管數(shù) n= 418 =47 根， 管 中心距 t=32mm，正方形錯列。 從實際情況考慮，只要 H2S 的摩爾分?jǐn)?shù)低于 %即可，所以本設(shè)計要求吸收率達(dá)到 98%，即出口混合氣體中 H2S 的摩爾分?jǐn)?shù)是 %。化工原理 [M]。水壓式沼氣池原理與構(gòu)造。s performers of the troupe still tour the region39。s essay titled SelfReliance. If you39。 work lives easier, but I simply c