盲目試驗 的英文怎麼說
中文拼音 [mángmùshìyàn]
盲目試驗
英文
blind trial-
But to this day, the design of the wind turbine is still the experience method because of complex computation and device. this method is blind and uncertain
但是到目前為止，由於計算過于繁瑣，模型試驗設備過于復雜，風力發電機的設計基本上還是採用經驗設計法，帶有很大的盲目性和不確定性。Here a suggestion is presented that the mental process of senior chemistry experimental problem - solving can be divided into four periods such as problem confirming, problem parsing, experiment design and experiment operation, and there are six representation patterns of chemistry experimental problem, for instance, character representation, chemistry representation, sample representation, visualization representation, skill representation and mathematic representation. at the same time, problem solving strategies also can be divided into principle guide, sample guide, environment guide and blind attempt
作者提出高中學生解決化學實驗問題的心理過程可分為問題確認、問題解析、實驗設計和實驗操作四個階段，他們對化學實驗問題的表徵方式有字面表徵、化學表徵、樣例表徵、形象表徵、技能表徵和數學表徵等六種，而解決策略則可分為原理導向、樣例導向、情境導向和盲目嘗試四種。The sensitivity analysis of design parameter of subgrade and pavement are used to confirmed the degree of impact on working state with change of the design parameter, it is the rational and economy that the range of design parameter are proposed. structure combination design is used to proposed basic structure of qinhuangdao ' s asphalt pavement in view of local natural environment, build material, traffic classification and soil grades. this paper puts forwards suiting 39 kinds of typical structure of qinhuangdao ' s asphalt pavement according to the actual structure, experimental section long - term observation, extensive surveys, structure theory ' s analysis and calculation
在公路等級、交通量等級、土基等級及路面材料參數研究的基礎上進行路基路面設計參數敏感性分析，用以確定設計參數的變化對路基路面工作狀態的影響程度，並據此給出了經濟合理的路基路面設計參數范圍；結合本地自然環境、築路材料、交通狀況及土質情況進行路面結構組合設計，提出了適宜於秦皇島地區公路瀝青路面的基本結構；最後根據實際路面結構、試驗路的長期觀測、大量調查與路面結構理論分析計算相結合，提出並推薦適合秦皇島地區的39種瀝青路面典型結構，這是本課題的主要宗旨，其研究成果將直接指導設計人員的工作，並避免隨意性和盲目性，對加快秦皇島地區公路交通事業的發展將具有十分重要的意義，對其他地區也有一定的指導意義。It can be a speedy and effective assistant tool for students and engineers to study and apply creep experiments, used to forecast the creep traits of new material in order to reduce the blindness during the real experiment and compared with the later experiment results. especially, with the improving of vmces ’ s function, it will be deeply and widely used in the field of scientific research
它為理工科大學生、研究生和一般工程技術人員學習、研究和應用蠕變試驗提供了快速、高效的輔助工具;在新材料研究與開發領域，通過虛擬試驗系統可對新材料的蠕變特性進行早期預測，以減少實際試驗的盲目性並可與後期試驗結果相互映證;隨著該虛擬試驗系統的逐步完善，它在科學研究領域的應用必將愈來愈深入和廣泛。It is not always good at increased the cement ratio ; sometimes it is even harmed to the strength of the pile. the strength of the pile must matches the strengths of the origin soft foundation. improved fixing methods of strain meter and how to calculate the deformation modulus, the load transfer behavior of cement - soil pile, the compound foundation bearing capacity, pile - soil stress ratio with the increasing of the load are analyzed and studied
本文通過分析和試驗分析，提出樁間土天然地基承載力標準值的取值方法、樁間土承載力折減系數取值方法，這和實測結果很接近；並得出提高復合地基置換率是提高復合地基承載力有效途徑，並具體比較了單樁復合地基和三樁復合地基提高天然地基的承載力的數值，並驗證樁體強度應和天然軟基相匹配，指出盲目提高樁體強度是不可取的，有時甚至偏於不安全，這對于當前的建設是很有意義的。A huge actual constructions and tests has proved that the bonding power of the bonding surface is often too small to satisfy the actual stress, and that in the construction of the new to old concrete, the construction process is blind because there are no unified standards of the construction technology, which leads to the quality of the construction is inferior. and in the design process, the designers who can ’ t identify the strength of the bonding surface can not make an accurate, economic and proper design, which will lead to waste or engineering accident
大量的實際工程和試驗證明，結合面的粘結力通常比較小，往往難以滿足實際結構受力的需要，而且在新舊混凝土粘結的施工過程中，施工工藝沒有統一的標準，造成施工過程的盲目性，最終導致工程質量的低劣;在設計過程中設計人員不能判斷出粘結面的強度，這就使設計人員不能準確、經濟合理的做出設計，造成浪費或埋下工程事故的隱患。Adopting the deformation harmony theory, the numeric calculation of the curve of load versus settlement is made. the fitting results between the calculated curve of load - settlement and the measured one of piles with different construction process are illustrated. hence, under the condition of few or no static load test data, the performance of bearing capacity of single bored pile in loess may be predicted utilizing indexes of shear wave velocity, static cone penetration test and modification coefficient of depth, so it is remarkable to reduce the blindness of preliminary design of pile
通過室內試驗及原位測試指標進行理論計算與現場實測值的對比，筆者引入了施工工藝修正系數k _ （ c1 ）和k _ （ c2 ）及深度修正系數，使理論計算值與現場實測值具有良好的一致性，進而通過變形協調理論對荷載?沉降曲線進行數值計算，並用不同施工工藝的實例說明了理論計算荷載?沉降曲線與實測荷載?沉降曲線的擬合效果，從而達到可在不做靜載荷試驗或少做靜載荷試驗的情況下通過剪切波速和靜力觸探試驗指標以及施工工藝修正系數等預測黃土地基中鉆孔灌注樁承載性狀，這對于工程初步設計中減少設計的盲目性具有十分重要的現實意義。分享友人