【正文】 s Liaoning province, decades ago. The solider gave the old man a handmade saddle when they bid farewell. The story inspired Nasun to write Carved Saddle, a song that later became one of his most popular numbers. Now, every year, Nasun recruits young singers and dancers for the troupe. The troupe has also designed a new repertoire, which is mostly based on the daily lives of Mongolian people, especially the lives of nomadic families, and has bined contemporary musical elements with folk songs of the region. Haimu, a 25yearold khoomei (a local variant of overtone singing) singer, joined the troupe three years ago. Along with a sixmember band, he performs fast songs and soft ones that he writes－all while playing the horsehead fiddle.Although I learned the piano since childhood and grew up listening to various kinds of music, to me, the folk music of Inner Mongolia is the root, he says. Performing in remote villages is pleasant. I feel at home on the boundless grasslands, and the warm people there make me feel fulfilled. The first round of spring auction season in Beijing ended last week, but it failed to create much spring in the art market. Although two pieces of Chinese painting fetched more than 100 million yuan, the decline in trading volume and sa le rate showed a downturn this year. In the “Grand View: Chinese Painting Highlight” session at China Guardian 2022 spring auctions, Pan Tianshou’s representative work Eagle, Rock and Flora hit a record auction price of 279 million yuan, while Li Keran’s masterwork Jinggang Mountain fetched million yuan, an unexpected high in recent years. However, the trading volume fells to billion yuan from billion yuan in the same period the year before. The Huangchen 2022 Spring Auctions, which recorded million yuan in total sales, experienced the same. The section number went down to 5 from 12 pared to last year. According to expert Shao Jianwu, the art market did not attract much excitement this year due to the booming stock market and the persistent problems of fery and fake deals. The two pieces of Chinese painting notched up high price this spring due to their own value not due to a revival in the market. The successful transaction of two works with a hammer price of more than 100 million yuan once again confirms that valuable and rare works of high quality always earn the longlasting high price. Chinese painting and calligraphy is still the pillar of the market. However, the overall sales rate has dropped slightly, which reflects the demand for the ordinary auction goods has weakened,” said the president of China Guardian’s Hu Yanyan. Besides, the entry of new buyers also makes certain changes to the direction of purchasing. In a word, the overall market trend is very unpredictable. Although China Guardian 2022 Spring Auctions has achieved remarkable results, it does not mean that the market has walked out of the predicament. We still have to wait for the big economic boom to invigorate the art market.” Even so, the hot pursuit of some special items appeared this spring. A special session of China Guardian Spring Auctions titled “Fine Gilt—Bronze Buddhist Images” achieved a great deal with total sales volume of million yuan and 92 percent sale rate. The 5th Shamar Rinpoche Statue from 1617th century of Tibet was sold for million yuan. The Beijing Chengxuan Auctions featured almost 2,800 items of coins and stamps in three sessions with good sale rate. The Huachen Auctions also set a special session of photographs under the condition of largescale decline of auction sessions. There was a palpable dull thud of disappointment that acpanied the return of the imperial entourage of Zhen Huan to her homeland. It followed a couple years of hushed excitement as Chinese fans were fed tidbits about their proud concubine who was supposed to conquer the high ground of the North American market. Zhen Huan is, of course, the title character of The Legend of Zhen Huan, a 2022 television series that swept China off its feet and later took other Asian countries by storm. Two years ago, it was reported that HBO, a premium cable service headquartered in the 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。80s. We sat on the back of pickup trucks for hours. The sky was blue, and we couldn39。這是我們就業(yè)前的一次理論與實踐的熱身訓練，也是對自己在大學三年中所學知識的一次總的檢驗。 三年的大學生活就快走入尾聲，我們的校園生活就要劃上句號，心中是無盡的難舍與眷戀。12普通銑床 平口 鉗 鉆頭 游標卡尺3 挖槽 曲面粗加工挖槽 CNC 銑床 虎鉗 ￠3 銑刀游標卡尺4 挖槽 曲面粗加工挖槽 CNC 銑床 虎鉗 ￠2 球刀游標卡尺5 精加工曲面精加工平行銑削CNC 銑床 虎鉗 ￠1 球刀游標卡尺6 攻螺紋剛性攻絲 4M8 虎鉗 絲錐9 鉆水路鉆 2248。然后按壓力、速率、溫度這樣的先后順序變動。（4）調(diào)整頂桿頂出距離 模具壓穩(wěn)后便慢慢開模，直到動模板停止后退，然后調(diào)整頂桿位置。目的不僅是簡單地檢驗一下模具是否能用，而且包括對模具設計合理性的評定以及對成型工藝條件的探索。20所以 F=A+ A 1=10000mm2+=P 模 =103NP 腔 F==103N故 P 腔 F＜P 鎖 即所選注射機的鎖模力能符合要求。 18 模架選用本設計采用CI2930A80B70C90的標準模架，此模架設計采用自動脫模，所以適合標準模架。推力點應該作用在制品剛性好的部位，如筋部、凸緣、殼體形制品的壁緣處，盡量避免推力點作用在制品的薄平面上，防止制件破裂、穿孔，如殼體形制件及筒形制件多采用推板推出。第八章 脫模推出機構的設計15第五章 成型零件的設計常用型腔成型尺寸的計算方法主要有兩種：平均收縮率法和公差帶法，兩種計算方法的區(qū)別在于平均收縮率法計算公式是建立在塑件的成型收縮率和成型零件工作尺寸的制造偏差及其磨損量分別等于它們各自平均值基礎上，當塑件的尺寸精度要求較高或塑件尺寸比較大時，這種誤差有可能會顯著增加，這時一些模具設計單位就采用公差帶法來進行尺寸計算，平均收縮率法計算簡單無需驗算而公差帶法計算復雜需要經(jīng)過多次初算驗算，且考慮因素較多 [9]。否則會塑件修磨和分割帶來困難。3）分流道的斷面和長度設計，應在保證順利脫模的前提下，盡量取小，尤其對于小型塑件更為重要，有利于降低澆注系統(tǒng)凝料的重量。主流道小端直徑應比注射機噴。10) 對排氣效果的影響。2）盡量采用簡單分型面。在 軟件上可算出塑件的總體積 V＝13574mm 3 注射機的選擇塑件的體積應該小于或者等于注射機的注射量。當注射速度過快時，塑料易燒焦或分解析出氣化物，從而在制件上出現(xiàn)熔接痕、光澤差及澆口附近塑料發(fā)紅等缺陷。在此，由于鼠標外殼屬批量件要求自動化程度高實現(xiàn)連續(xù)化生產(chǎn)選用烘干料斗并裝備熱風料斗干燥器，以免干燥好的ABS在料斗中再度吸潮 [。④其他性能在干燥的氣候條件下物理力學性能基本不變，但在潮濕環(huán)境及強烈日照條件下，會產(chǎn)生表面裂紋并發(fā)暗，在火焰中可緩慢燃燒，離火源后可自熄 [5]。③電性能 聚苯乙烯是非極性聚合物，具有頗為優(yōu)異的介電、電絕緣性能，由于吸濕性很小，電性能也不受環(huán)境濕度改變的影響。 聚苯乙烯（PS）聚苯乙烯是無色無臭的透明剛硬固體，制品