unstable condition 中文意思是什麼

unstable condition 解釋
不穩定條件
  • unstable : adj. 1. 不穩定的,不牢固的。2. 不堅定的,動搖的,易變的,反復無常的。
  • condition : n 1 狀態,狀況,情形;品質。2 〈pl 〉外界狀況,周圍情形。3 地位,身分。4 條件;【語法】條件子句。...
  1. Practices on bolt, mesh, anchor and beam support in coal drift under unstable roof condition of cataclastic rock mass

    不穩定頂板煤巷錨網索梁支護實踐
  2. Inversion of the tank results from the unstable condition of a single support.

    水塔就是由於不穩定的單獨支撐而翻倒。
  3. As the increase of domestic high - rise buildings, more and more deep foundation trench supporting constructions have come into existence. among the general geographical condition of the urban district in qingdao, most of regions, which mainly consist of strong de composed rocks, are in quite good condition. except for the sandy soil and oozy soil along sea sides. but the development of rock cracks and breaking zones and unstable lamprophyre still exist, so blasting is needed during constructions of foundation trench. blasting have bad influence on the stability of slopes. moreover. the slope - liding has happened for several times, so the engineering project of foundation trench attracts more attention of people

    隨著國內高層建築的發展,深基坑支護工程越來越多,綜合青島市區的地質狀況,除海邊有砂性土及淤泥軟土外,大部分地域巖土條件相對較好,多以強風化巖為主,但巖石裂隙發育,間或有斷裂帶和穩定性極差的煌斑巖穿插其中,基坑施工時需要爆破施工,對邊坡的穩定造成了不利影響,加之連續出現的幾次滑坡失穩事件,基坑支護工程越來越引起了各方面的重視。
  4. Application of caving mining technology with bottom under condition of flat dipping mid - thick body and unstable rock caused the most of trench and bottom drift, located in abutment, to be destroyed and low recovery in south area, xishimen iron mine

    摘要在緩傾斜中厚礦體底板巖性不穩固的條件下,採用有底柱崩落法,由於電耙道大多處于空區邊部應力集中的部位,致使塹溝及底部結構巷道破壞嚴重而使回收率極低,採用無底柱崩落卸壓則可有效解決上述難題。
  5. According to differences of construction process, boundary condition, temperature and stress of two schemes extending 3m deep short seam on upstream face in the middle of rcc overflow section and no short seam are calculated, what " s more, in this paper the equivalent line drawing of stable temperature field and unstable temperature field during construction and operation period and the duration curve drawing of typical points " s temperature and stress are plotted, and the results of peak and minimum on temperature in every month and maximum on tensile stress are attained

    根據施工過程和邊界條件,對溢流壩段中間上游面增設3m深短縫和不設短縫兩個方案進行了溫度和應力計算,並繪制出穩定溫度場等值線圖及施工期、運行期非穩定溫度場等值線圖,典型點溫度和應力歷時曲線圖,逐月最高、最低溫度和最大拉應力及相應位置等成果。
  6. Abstract : according to sidewall unstable problem during dr illing, the study on sidewall stability is developed. the paper analyses sidewall stress state and sidewall unstable type, and combines with log data and indoor e xperimental result of core. through analysis and calculation, the method of calcul ating slough formation pressure is proposed. by application of the method in 3 wells in yancheng area, result shows that slough pressure section fits in with field practical condition. it supplies some basis for design of drilling fluid d ensity

    文摘:針對鉆井中井壁失穩問題開展井壁穩定性研究,文中就井壁應力狀態和失穩類型進行分析計算,並結合測井資料和巖心的室內實驗結果進行分析,建立了一套計算地層坍塌壓力的方法,結合鹽城地區3口井應用對比,坍塌壓力剖面基本吻合現場實際,為鉆井液密度設計提供了一定的依據。
  7. The total number of epileptic patients discharged from public hospitals, as well as the number of these discharged patients who were in unstable condition after discharge and had frequent seizures, in the past year ; and

    過去一年,共有多少名癲癥病人出院,其中有多少名病人出院后病情仍不穩定,時有發作及
  8. I found that the college had existed these problems such that the teaching aim was flashy and without substance, the teaching curriculums were blindly copied indiscriminately and inappropriate between the easiness and difficulty, the teaching condition was not enough standard, the teachers did n ' t have enough actual strength and their structure lost its balance and was unstable, the basis of students was weak and they did n ' t study hard, the teaching administration was as much too painstaking as the high schools or primary schools did

    首先對學院的教學系統中的教學目標、教學課程、教學管理、教學條件、教師實力和學生狀況等因素作了較為深入詳盡的調查訪問,然後整理素材,離析問題,結果發現該院當前存在著教學目標華而不實;教學課程盲目照搬,難易失衡;教學條件不太達標;教師實力不足,結構不穩:學生基礎薄弱,學習不力;教學管理「中小學化」等問題。
  9. In this paper, dynamic stability of parametrically excited flexible cam - follower system on the weakly nonlinear condition is investigated by using the combination of both the method of multiple scales and the technique of fourier series expansion. the equations of approximate transition curves in the plane of the dimensionless frequency and excitation ( amplitude ) parameter that separate stable from unstable solution are derived

    隨后,本文採用多尺度法並結合fourier級數展開,分析了不同的凸輪從動件運動規律和不同的凸輪的升程、停程以及回程的時間分配規律下,無間隙的周期時變凸輪系統模型的穩定性,獲得了各種規律下的凸輪系統的穩定區間圖。
  10. In the turbulent flow, the fluid ’ s physical parameters has the stochastic change along with the time and the space, it is very difficult to carries on its rate process ’ s precise computation and the simulation with mathematics method, but unstable condition navier - stokes equation regarding open canal current of water transient motion suitable

    閘后水流經過加糙的海漫段時,其水流狀態屬明渠紊流。流體中的各種物理參數,都隨時間與空間發生隨機的變化,很難用數學的方法對其運動過程進行精確計算和模擬。
  11. The original design was intermediate vapor 42t / h, but the actual output is 30 - 35t / h, at the same time the temperature and pressure of the vapor are unstable, it affects the economic efficiency, the reason were the collecting dust on the heat area and serious corrision, they led to the decrease of the boiler load, and need stop to washing the dust, the article deals with the reform of the exhaust gas boiler, at the basic of the design condition, after thermo calculation, flute gas, resistence calculationand strenth calculation, the structure of the heat surface had been rearranged, then the proof calculation was done

    原設計產中壓蒸汽42噸時,但投運后只產30 - 35噸時,並且蒸汽溫度和壓力均不穩定,影響到經濟效益。其原因是受熱面積灰和腐蝕嚴重,影響傳熱使鍋爐負荷下降,不能長時間運行,需停產清理積灰。本論文針對此余熱鍋爐的技術改造,在給定設計條件基礎上,通過熱力計算,煙氣阻力計算和強度計算,對鍋爐受熱面結構重新布置,然後再作校核計算。
  12. The surfacial sediment on the yellow river delta is so sensitive to ocean hydrodynamic condition, especially waves that soil failed and came into being a lot of unstable features : bumps and hollows, flute and groove cast of silt and collapse

    黃河三角洲潮灘淺表層沉積物由於對海洋動力尤其是波浪作用的敏感,會發生破壞,形成塌陷、凹坑、粉砂流沖溝等一系列災害地質現象。
  13. But when the condition number of the matrix is very large, the round error will be accumulated to collapse the true solution, that is, the method is unstable

    同時,當系數矩陣的非零元結構不規則或帶寬較大時,其計算量與存儲量十分大。
  14. On the other hand, we had obtained the necessary and sufficient condition for the existence of robust decentralized follower when the external unstable model of every subsystem was different with each other

    另外,文中還研究了各子系統外作用形式不同時魯棒跟隨器存在的充要條件。
  15. In order to simplify the computation and be advantageous for the theoretical analysis, the soil partial heat transfer analysis uses the unstable condition heat transfer model analysis research regarding the drill hole outside

    為了簡化計算,便於理論分析,對于鉆孔以外土壤部分的傳熱分析,需要採用非穩態的傳熱模型分析研究。
  16. The tuning curve of type - i phase matching of bbo opo are measured with accuracy ; the maximum conversation in total of the system is about 31 % at 615. 6 nm, and it is fitted well with the gtp formula ; in the end we compared the output linewidth and unstable cavity far field beam qua lity of the bbo opo under the condition of type - i phase matching and type - ii phase matching, it is proved that we can obtain the parametric output of linewidth less than 0. 3 nm and the beam divergence angle approaching diffraction limits by take the advantages of type - ii phase matching and unstable cavity designs

    測量了該系統的轉換效率最大為31 ,並能與理論公式極好地吻合,最後比較了在類相位匹配條件下和類相位匹配條件下的bbo - opo的輸出線寬,以及非穩腔的遠場光束質量,實驗結果表明,利用類相位匹配以及非摘要穩腔設計可以獲得線寬小於0 3nlm 、光束發散角接近衍射極限的參量光輸出。
  17. Since the pure cylindrical vesicles without ends are unstable even non - existence, approximations of torus and cylinder with spherical ends are utilized. the result from the former approximation means the condition of infinite long cylinder, which gives us no useful information. by spherically topological approximation, we get a set of conditions, all of which specify the range of parameters

    利用環拓撲結構近似,我們得到了無限長柱狀膜的方程,但此方程沒有給出任何有用的信息;利用球拓撲近似,無論直接變分還是間接變分,都給出了一組條件,規定了參數的一個取值范圍,所以,球拓撲近似比環拓撲近似更實用一些。
  18. " crisis " means an unstable condition, as in political, social, or economic affairs, involving an impending abrupt or decisive change

    「危機」是一種不穩定的狀態,指政治、社會或經濟進入了一個危險的境地或發生了決定性的改變。
  19. It can confirm the rights promptly in substantive law, and avoid the unstable condition in society. it has manifested judge ' s wisdom, and has important practice significance in the judicial activities

    其適用能夠及時確認實體法上的權益,避免社會關系處于不穩定的狀態,體現了法官的智慧,對司法審判活動具有重要的實踐意義。
  20. By using the method of construct boundary condition at the entrance, it did a research on the formation principle of karman vortex and believed that there was no direct relationship between the formation and the object itself. the existence of the object just provided a basic current in the space to generate a absolutely unstable district and so the explanation of absolutely unstable model near wake flow is more suitable

    通過採用構造入口邊界條件的方法,對k rm n渦街的形成機理進行研究,認為渦街的生成與物體本身無直接關系,物體的存在只是在空間內提供了可以產生絕對不穩定區域的基本流,因而近尾跡絕對不穩定模式的解釋較為合適。
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