凍融保護 的英文怎麼說

中文拼音 [dòngróngbǎohù]
凍融保護 英文
freeze-thaw protection
  • 凍 : Ⅰ動詞1 （液體或含水分的東西遇冷凝固） freeze 2 （受冷或感到冷） feel very cold; freeze; be frostb...
  • 融 : Ⅰ動詞1 （融化） melt; thaw 2 （融合; 調和） blend; fuse; be in harmony Ⅱ形容詞[書面語]1 （長遠; ...
  • 保 : Ⅰ動詞1 （保衛; 保護） defend; protect 2 （保持） keep; preserve; maintain in good condition 3 （...
  • 護 : 動詞1. （保護; 保衛） protect; guard; shield 2. （袒護;包庇） be partial to; shield from censure
  1. The investigation of a lot of parameters about treated sandstone, brick materials and earthen materials with fluorited polymers has been carried out, such as the formation of polymer, the penetration depth, porosity, capillary absorption and penetration coefficient, water uptake, compressive strength, drilling resistance, absorption isotherms of water vapor, water vapor diffusion, color changes as well as resistance to desegregation of water, frizzing - throwing cycles, worming - cooling cycles, and so on. in addition, the influence of salt crystallization, acid and base, and uv aging have also been assessed in order to better understand the protection effects and utilization possibility of two fluorinated polymers, mainly according to astm standard and the combination of international methods together with general technological

    分別以國家級文物保護單位的土質、砂巖和磚材文物樣品為對象，依據astm標準及國際通用文物保護研究方法與評估準則相結合，通過膠化物形成周期、滲透深度、孔隙度、毛細吸水和滲透系數、持水量、抗壓強度、抗鉆強度、吸附水蒸氣的能力、透氣性、外觀顏色等系列參數的測定，及凍融、冷熱循環、酸堿腐蝕后抗壓強度的衰減、可溶鹽對保護效果的影響、酸堿及光照對表面保護效果的影響，對兩種含氟聚合物及其與有機硅的共混物在文物加固保護和表面防護中的可行性和保護效果給予了系統研究。
  2. They have raised all kinds of engineering steps on roadbed against frozen disaster, for example, adopting the reasonable height of roadbed, building ventilative embankment, setting up the defense, burying hot metal stick, making use of stone to protect slope and laying thermal insulation and heat insulation material etc, laying eps is one of these special steps

    針對路基凍害問題，人們對路基凍脹、融沉和溫度場特徵進行了廣泛研究，提出了各種路基抗凍害的工程措施，如選用採用合理的路堤高度，修築通風路堤，設置護道，埋設熱棒，利用片石護坡和鋪設保溫隔熱材料等特殊工程措施。
  3. In our report, we selected trehalose to substitute sucrose in the cryoprotectant. the process of vitrification is under the same preferable condition. the survival - rate of the recovered cells was tested by fda - pi and cd34 + cell - count

    凍融后的細胞以fda - pi雙熒光染色、流式細胞儀cd34 +計數等檢測手段，與同樣條件的60蔗糖保護劑處理的細胞相比較。
  4. The survival - rate of the recovered cells was tested by mtt and fda - pi. therefore, we got the preferable condition of vitrification, i. e., the concentration of cryoprotectant is 60 % and the time of disposal is 15min. under this condition, the value of fda / pi is 46. 43

    凍融后的細胞經過mtt檢測和fda - pi雙熒光染色法檢測，獲得預處理過渡的優化條件，即60濃度的保護劑，預處理15分鐘，此時的fda pi值為46 . 43 。
  5. From experimental result, i preliminarily know that eps is good thermal insulation material because the absorption of water is low and heat insulation is good, it is practicable at preserving temperature field of frozen earth roadbed and bringing frozen disaster under control ; second, according to the analysis of the eps that is applied into practical project, i have studied the practical effect which eps preserve roadbed temperature field, and the influence that was made after building field. i have get that eps can influence moisture content and frozen upper limit, through practical measuring data, i have studied freezing and expanding quantity and melting and submerging quantity during a complete frozen and melting cycle as well as have expanded and proved the practical application effect of eps with some reference significance to deep research of some connected problems. finally, through computer data analysis, setting up the analytical model of finite unit, i have simulated the temperature field of roadbed heat preservation, then expounded and proved that the height of embankment influenced the effect of thermal insulation material

    其一是對聚苯乙烯泡沫塑料（ eps ）保溫板以及天然路基土層、路堤填料進行了室內試驗分析，結合國內外現在的有關科研成果，綜合確定其各項特徵參數；從試驗結果初步認識到聚苯乙烯泡沫塑料是一種吸水率低，隔熱性好的保溫材料，在凍土路基溫度場的保護和凍害治理方面是可行的；其二通過eps保溫板在現場工程實踐中的應用分析，研究了保溫板在保護路基土層溫度場的實際效果以及修築路堤后造成的影響，保溫板對土體含水量、凍結上限的影響，通過實測資料，研究了在一個完整的凍融周期內整個路基的凍脹量和融沉變形量，論證了保溫板的實際應用效果，對有關問題的進一步研究和相關工程設計具有參考意義；其三，通過計算機數值分析，建立有限元分析模型，對保溫路基的溫度場進行了模擬計算，論證了路堤高度對保溫材料效果的影響。
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