【正文】 United States, was going to air it in North America after some modification. Now, a condensed version that provides English subtitles but no dubbing has finally been made available on Netflix for online streaming. This version, highly anticipated as a milestone in China39。s essay titled SelfReliance. If you39。s essay affects me very deeply. Not as an urging to bee self reliant – I39。 work lives easier, but I simply could not digest the fact that that was my sole purpose in life. With no family to support, I was the sole beneficiary of my employment: the paycheck, the benefits, the incentives and the rewards were mine alone. Not much of a purpose in being selfserving, is there? While I was a student, I felt I was leading a purposeful life. Learning new things, broadening my horizons, expanding my life experiences all gave my life a zip and drive that I had not felt since being in survival mode when my kids were small. After graduating college I felt oddly deflated… but by then, China was on my horizon.17。ve been here I have been tasked with nothing more challenging than learning my students39。s own path. He urges the reader to find rectitude and lead a moral life. He professes that, only by being self reliant, as opposed to relying on the government and being dictated to by society, can one begin leading a decent and purposeful life. He avers that such a life is the only life worth living. I agree with him. This essay was written during a time of social upheaval in America, and it is rather odd that Emerson authored it, as he was a part of the upper crust of society at the time. It just so happened that he looked around him, at the indolence and the wantonness of the people in his circle。s lost, I believe, are the interesting setups and pauses that illuminate the Chinese art of storytelling. Much of the plot is still there. It is the flavor that was sacrificed. The American edition uses the framework of the Empress Dowager in her senior years reminiscing at the beginning and the end of each episode, hinting at what39。s Poly Theater. Their show, titled Ulan Muqir on the Grassland, depicted the history and development of the art troupe. Being from the region allowed me to embrace the culture of Inner Mongolia and being a member of the troupe showed me where I belonged, Nasun, the art troupe39。t have a formal stage. The audience just sat on the grass. Usually, the performances became a big party with local people joining in. For him, the rewarding part about touring isn39。s Shaanxi province pass through a stop on the ancient Silk Road, Gansu39。生態(tài)農(nóng)業(yè)中廢棄物的處理與再生利用。固體廢物的處理與處置[M]。=ρGV=1000=1150kg/h（）=用《化工原理》，查的縱坐標(biāo)為選用25mm25mm亂堆瓷鮑爾環(huán)，填料因子=300 l/m，==135℃溶液取35℃水的黏度=106Pa/s 泛點氣速==取空塔氣速為80%，則=80%==塔徑D==（4）填料層高度的計算①設(shè)計參數(shù) ，沼氣流量為1000m3/h，操作溫度為35℃，硫化氫的氣相體積吸收總系數(shù)KYa=300kmol/。已知操作壓力為2個標(biāo)準(zhǔn)大氣壓。%時可引起人頭痛、乏力、失明、胃腸道病等癥狀。傳熱面積A選=（5）校核總傳熱系數(shù)①管程對流傳熱系數(shù)α1管內(nèi)料液流速u1==Re1==Pr1==α1==（）=②殼程對流傳熱系數(shù)α2殼程流通截面積S=hd（1）= （1）=熱水的流速u2==正方形排列的當(dāng)量直徑de==（）=163，Pr2==熱水被冷卻，取（）=α2=163（）=163（）= W/③總傳熱系數(shù)取污垢熱阻Rd1= Rd2=，碳鋼的熱導(dǎo)率=45W/（）=+Rd1++Rd2+ =++++ =K= W/④傳熱面積A=== 與原估計值基本相符==，即傳熱面積有2%的裕量，符合要求 吸收塔的計算（1）傳質(zhì)推動力的計算 在溫度t=35℃，含有H2S %（摩爾分數(shù)）的沼氣與清水接觸，吸收其中的H2S。殼程中有旋流擋板，易造成懸浮顆粒沉降，而管程則易于清洗，所以熱水走殼程，料液走管程。料液從5℃升至35℃，熱水從75℃降至45℃，逆流流動。（2）水壓間的高度△H：此高度應(yīng)等于發(fā)酵間最大液位下降值H1與水壓間液面最大上升值H2之和，即△H=H1+H2（3）水壓間容積：此容積等于池內(nèi)最大貯氣量。（4）進出料管的垂直位置一般確定在發(fā)酵間的最低液面設(shè)計高度處。（3）計算圓筒形發(fā)酵間容積：圓筒形發(fā)酵間由池蓋、池身、池底組成（如圖3所示），三個部分的容積計算公式如下： 圖3 沼氣池發(fā)酵間的組成 式中：VVV3——分別為池蓋容積、池底容積、池身容積 ff2——分別為池蓋矢高、池底矢高 r1——池蓋曲率半徑，它與其他尺寸的關(guān)系為； r2——池底曲率半徑，它與其他尺寸的關(guān)系為； R——池體內(nèi)徑 H——池身高度 π——圓周率，綜合圓形沼氣池的內(nèi)力結(jié)構(gòu)計算，材料用量計算和施工、管理、使用技術(shù)等各種因素，一般認為池蓋矢跨比，池底失跨比和池身高時沼氣池的尺寸比較合理。（5）投料率：投料率系指最大限度投入的料液所占發(fā)酵間容積的百分比，一般在85~95%為宜。、。采用每30天投料一次，30天進行一次大換料。為使發(fā)酵過程有一個較高的產(chǎn)氣量，可將貧氮原料與富氮原料適當(dāng)配合成為具有適宜碳氮比的混合原料。一月到三月、十月到一月溫度比較低，這段時間對原料要進行換熱處理。這兩個階段起作用的細菌稱為不產(chǎn)甲烷菌。 有機物厭氧發(fā)酵依次分為液化、產(chǎn)酸、產(chǎn)甲烷三個階段（如圖1所示）。因此，出料的時候最好采用出料機械。 （2）水壓式沼氣池型也存在一些缺點，主要是：①由于氣壓反復(fù)變化，而且一般在4～16千帕（即40～160厘米水柱）壓力之間變化。（1）水壓式沼氣池型有以下幾個優(yōu)點：①池體結(jié)構(gòu)受力性能良好，而且充分利用土壤的承載能力，所以省工省料，成本比較低。 水壓式沼氣池基本知識 水壓式沼氣池的特點 水壓沼氣池是一種埋設(shè)在地下的立式圓筒形發(fā)酵池，池蓋和池底是具有一定曲率半徑的殼體，主要結(jié)構(gòu)包括加料管、出料管、水壓間、導(dǎo)氣管幾個部分。甲烷是簡單的有機化合物，是優(yōu)質(zhì)的氣體