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坡面傾斜的更厲害了,韓立渾身的力氣也是越來越小,為了不會走著走著就站立不住,韓立只能躬下腰,手足并行,總算身上的衣服夠結實,不然四肢的關節膝蓋處就會被磨破。 連云港市政府副市長尹哲強說,隨著新機場的開工建設,北京市民日后前往連云港將更加便捷。北京與連云港具有廣闊的旅游合作發展前景。
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一路遇到的人大都身穿青緞衣,身上或挎著刀,或背著劍,偶爾一些赤授空拳的人腰間也鼓鼓囊囊的,不知揣著升嗎東西,從行為舉止上,可以看出這些人身手矯健,都有一身不錯的功夫在身。 韓立轉頭一看,卻是那位緊跟在自己身后的師兄一手抱著自己,另一手和雙腿敏捷的向上攀升,韓立同時注意到太陽高高的掛在天上正中間。
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記者觀察 在經過一片茂密的樹林時,從林子里緩緩走出一老人,這人六十余歲,長的高高瘦瘦,面皮焦黃,卻留有一頭長到披肩的白發,這老者一邊走一邊不停的恭著身子咳嗽,看他咳嗽的辛苦樣子,似乎他隨時都有倒下的可能,令人十分擔心。YB1-100/12
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YB1-50/10 YB1-50/6 張曙老師在談到金剛石超精密機床時,提出一個詞匯,叫做微鑿加工,如光學費湼爾透鏡模板就是這樣制造出來的。對此,李總也不陌生,因為他是國家863攻關項目,大型菲涅爾透鏡車床制造課題組組長,又是國家04專項精密航空車床制造課題組組長,故有較豐富的實踐經驗。 中國石油和石化工程研究會丁武秘書長介紹說,中國石油石化工程研究會是石油石化的社會團體,全國4A級的學術組織。我國是富煤、貧氣、少油的資源特點,加之地理形式復雜,因此開采難度較大。稠油對溫度敏感,溫度升高粘稠系數下降后才易于流動和采集,注入高溫高壓蒸汽,使稠油流動起來是主要的開采手段,而密封是保障蒸汽質量的核心要素。目前世界上沒有一種材料可以同時具備耐高溫、耐高壓、高彈性,所有中國企業必須去自主研發這種新的材料,這應該說是一個世界性的難題。天鼎聯創公司經過三年的研發,成功研制出世界上第一款能耐350℃,20MPa飽和和水蒸汽壓力的高彈性復合材料,特別是在高溫的條件下,不失類似于橡膠的彈性。350度和20MPa壓力下能持續長時間的密封,最高溫度361度,壓力最高達到了25MPa。成為第一家通過勝利油田采油工程院地面測試的產品,也通過了中石化科技部專家委員會的鑒定:整體技術達到了國際先進水平。YB1-50/4 YB1-50/2.5 YB1-40/10
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