contracted section 中文意思是什麼

contracted section 解釋
收縮堰
  • contracted : adj. 1. 收縮了的，縮小的；縮略的；（心胸，思想等）狹小的；貧困的。2. 訂過（婚）約的。adv. -ly ,-ness n.
  • section : n 1 （外科、解剖的）切斷；切割；切開。2 【外科】切片，【金相】磨石。3 （果子的）瓣。4 【數學】截...
  1. Section two the evaluation of biocompatibility of the acellular dermal matrix by the method of cell culture. the new born rat ' s epdermic cells were cultured with the acellular dermal matrix together as experiment group, while the epdermic cell were cultured simply as control. 24 hours later, under the invert microscope, the epidermic cells anchored well and transparent flat cells were observed in both groups. 7 days later, both cultured cells were taked out and fixed in 95 % ethanol, stained with hematoxylin and were observed under light microscope. many cleaved cells were observed in both groups. during cell culture, no pathogenic microganism was observed. so we considered the acellular dermal matrix was aseptic and had good biocompatibility. section three subdermal implantation of the acellular dermal matrix. 24 rats were used in the experiments. a piece of acellular dermal matrix ( 1. 5 x 1. 5cm2 ) was implanted beneath the dorsum skin flaps of each rat, 1 week, 2 weeks, 3 weeks and 4 weeks after implantation, 6 pieces of acellular dermal matrix were harvested and the size of implanted acellular dermal matrix were measured, the sections were used for he staining and observed under light microscope. the result were as folio wing : 1 - 2 weeks after implantation, the acellular dermal matrix began to adhere to the tissue around and turned red gradually ; 3 - 4weeks after implantation, the acellular dermal matrix adhered closely to the tissue around and could be recognized easily, 1 - 3 weeks after implantation, the size of implanted acellular dermal matrix had no statistical difference ( p > 0. 05 ). 4 weeks after implantation implanted acellular dermal matrix contracted ( p < 0. 05 ). under light microscope, l - 2weeks after implantation, the fibroblast cells infiltrated the acellular dermal matrix and a small amount endothelial cells of vessel and lympho - histiocytic cells infiltrated the acellular dermal matrix. 3 - 4 weeks after implantation, infiltrating blood vessels were evident. so we think that the acellular dermal matrix had low immunological reactions and could induce the infiltration of fibroblast macrophage cell and the endothelial cells of vessel

    結果如下：皮下包埋卜周者，無細胞真皮基質漸與周圍組織粘附，顏色由蒼白轉紅；皮下包埋3周者，無細胞真皮基質與周圍組織緊密枯附，盾晰葉辯；術后卜周，包埋的基質面積變化較包埋前無統計學差異o川0引，術后4周包埋的無細胞真皮基質面積較包埋前縮小j刃刀5 ） 。光鏡下術后卜周，宿主的淋巳組織細胞、成纖維細胞浸入生長，釉附在膠原纖維上，少量血管內皮細胞浸入基質；術后34周，無細胞真皮基質內較多的血管形成，故可認為無細胞真皮基質免疫原性低，能誘導宿主的成纖維細胞、巨噬細胞浸入生長，為一種新型的真皮替代物。第四部分無細胞真皮基質與自體斷層皮片復合移棺的研究， sd大鼠10隻，在其背部卜方造成全厚皮膚缺損的創面
  2. Based on a supposed case, section four addresses the basic types of real options such as deferred options, expanded options, contracted options, abandon options, switch options and so on

    第四節結合一個假設案例，簡要說明實物期權的基本類型，有延遲投資期權、分期建設期權、擴張期權、收縮期權、停（啟）期權、放棄期權、轉換期權、企業增長期權等等。
  3. Introduce the new construction technology, technics and methods of ohe in the electrifying project of wu - pu section, jing - guang railway, which was contracted to be construction by the electrifying project department, china railway no. 12 group, different from the technology used before

    介紹中鐵十二局集團電務公司承建的京廣線武蒲段山坡至咸寧電氣化工程中所採用的與以前承建工程相比較不同的接觸網施工新技術、新工藝及施工方法等。
  4. ( 2 ) validate whether the crest elevation can meet the require of energy dissipation and erosion prevention during the beginning period of flood discharge. ( 3 ) calculate the altitude of downriver cofferdam, and make it meet the require of energy dissipation and erosion prevention. ( 4 ) calculate some average velocity of flow through some sections, including contracted section in stilling basins behind upriver cofferdam, if the hydraulic jump happen in lower reaches of the river. the program will calculate the average velocity of flow of contracted section and the length of the apron

    主要設計內容包括：計算上游圍堰后消力池的尺寸；驗證泄洪初期壩面高程是否能夠滿足消能防沖需要；計算下游圍堰堰頂高程，使其滿足泄洪期圍堰和壩體過流的消能防沖和工程進度的需要；計算部分斷面平均流速，包括：上游圍堰后消力池中收縮斷面的斷面平均流速；壩首和壩末的斷面平均流速；當下遊河道發生水躍時，計算下遊河道的收縮斷面平均流速及需要鋪設護坦的長度。
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