critical material 中文意思是什麼

According to the requirements of the cng on neutron flux, critical wavelength and distance between inpile guides and the cns, the relation between the source size and the critical angle of the coating material of the inpile guides as well as neutron flux at exit of the cngs have been studied

根據導管設計指標的需要，研究了冷源尺寸與堆內導管內壁鍍膜材料的全反射臨界角和導管系統出口處中子注量率的關系。

This article tried to carry out macroscopic induction and microscopic study toward the traditional culture of guangxi ' s han nationality from various cultural levels such as material life, etiquette and custom of life, festival culture, religious beliefs and folk art. and by means of widespread comparison with han and minority nationalities in other regions, this article explored the characters, originating reasons and evolution law of han nationality ' s traditional culture in guangxi and considered the ways of building socialism on the basis of critical inheritance of traditional culture, in order to offer reference to realizing the strategic target " making the residents rich, developing guangxi and new stride "

本文根據馬克思列寧主義關于建設社會主義新文化離不開對民族傳統文化的批判繼承的基本理論，運用廣泛比較和綜合分析的方法，對廣西漢族傳統文化進行宏觀的歸納和微觀的研究，並與我國其他地區的漢族和廣西少數民族進行了廣泛地比較，探索廣西漢族傳統文化的特點、產生原因和演變規律，思考如何在批判繼承傳統文化基礎上建設社會主義的途徑，以求為實現「富民興桂，新跨越」的戰略目標提供借鑒。

The first team of ten initiates arrived in medan on january 1. knowing that residents of banda aceh had suffered heavy casualties and were in critical need of medical personnel, medical supplies and daily necessities, the sisters and brothers immediately asked formosa to provide these types of material support

第一隊10位同修于元月1日抵達棉蘭后，得知亞地區死傷慘重，醫護人員及醫藥民生用品均嚴重缺乏，立刻回報福爾摩沙，進行醫藥品及物資的補給。

While acknowledging the author ' s cultural perspectives, choice of material and references, as well as his writing style, this review also offers certain critical comments on some viewpoints and points out a few errors concerning the historical data wu ' s book

在充分肯定作者的立意、選材和寫作風格的同時，也對書中的個別觀點提出商榷並指出少量史實方面的舛誤。

In this thesis, the critical components of pcs are analyzed and tested in detail. i present the scheme of reliability qualification test of capacitors, furthermore, analyze the sampling inspection scheme theoretically for capacitors and put forward the proposals to improve this scheme. for most of components in pcs with high reliability or long lifecycle, which need great investment of time and material for their reliability tests, this paper provides a new and effective statistical method for this kind of components - the progressive stress accelerated life testing with exponential distribution

可靠性試驗也是可靠性工程的重要組成部分，能源系統許多元器件為高可靠性、長壽命器件，且大部分是非標準器件，為保證整個系統的可靠性，必須對備選元器件進行可靠性試驗，本文對能源系統關鍵器件進行了詳細的試驗分析，給出了電容器的鑒定試驗方案，對其抽樣試驗方案進行了理論分析並給出了方案改進建議。

In the suspended sediment transport model, the method of shear stress is adopted to determine the source function in the suspended sediment diffusion equation. through a series numerical experiments and statistical analyses of observed field data, a local coefficient, which can reflect the bottom material and consolidation, is introduced into the classic critical erosion velocity of the sediment

懸沙輸運模型利用切應力方法來確定對流擴散方程中的泥沙源函數，其中的臨界起動速度利用經典的泥沙起動流速公式前面增加一個局地系數得到，這個系數能反映河床底質結構及固結程度，通過系列數值試驗和實測資料的統計分析確定。

These critical factors have been given particular attention in the subsequent development and design of this kiln type, while maintaining the unique features of pfr - kiln principles, i. e. the parallel flow of material and combustion gases in the burning zone and the regenerative preheating of combustion air

內部形狀這些關鍵因素已經在這種窯型后來的發展和設計上被特別給予關注，同時保留併流蓄熱的窯型的原理，例如燃燒帶的原料和燃燒氣體的併流和助燃空氣的再預熱。

This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題，主要研究內容有： （ 1 ）實驗、測定了20種常見生物質的能量（發熱量）和c 、 h 、 n元素含量，根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式，並通過r _ （ 0 . 05 ）檢驗；為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便； （ 2 ）選擇了8種生物質試樣作了等加熱速率（ 10 min 、 20 min 、 40 min 、 60 min ）和恆溫加熱的tg和dtg實驗，根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程，並採用goast - redfem積分法和p函數對其動力學參數進行了求解，解析出各種生物質的頻率因子和活化能參數，進而建立了各種生物質的熱解動力學模型，為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述，提供了理論和依據； （ 3 ）為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間，在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定，得出生物質的長徑比（ l d ）一般在5 . 0 6 . 0之間，平均為5 . 3的結果； （ 4 ）採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究，解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間（ t ） ，得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果，為閃速熱解反應器固相滯留時間設計和預測提供了理論依據； （ 5 ）根據上述實驗結果，綜合運用工程力學、工程材料、機械設計學原理，推導、建立了轉錐式閃速熱解反應器物料滯留時間（ ）與轉速（或頻率）合理匹配理論； （ 6 ）提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。

Based on energy theory, wrinkling criterion in deep drawing for axisymmetric parts is derived to take geometry parameters, friction coefficient, material properties, and the law of critical blank - holder force ( bhf ) of side wall wrinkling in the constraint condition of initial wrinkling into account

從能量平衡原理出發，通過對屈服準則的線性化處理，推導了考慮幾何參數、摩擦系數和材料性能參數、板材皺曲時約束條件的軸對稱拉深成形過程中側壁起皺臨界壓邊力的變化規律，給出了皺曲判據。

The results show that, when increasing the feed rate of the grinding wheel, decreasing the rotating speed of the wafer chuck table and using coarser grit grinding wheel, the material removal rate in the wafer rotating grinding increase, the feed rate of the grinding wheel has greater influence on the material removal rate ; when suitably increasing the rotating speed of the grinding wheel, decreasing the feed rate of the grinding wheel and using finer grit grinding wheel, the wafer surface roughness can be reduced ; there exists a critical rotating speed of the grinding wheel ( about 2300rpm ), beyond which the material removal rate evidently decreases and the spindle motor current and wafer surface roughness steeply increase ; when the grit size of the grinding wheel is finer than # 2000, the material removal rate decreases and the wafer surface roughness has no obvious improvement

研究結果表明，增大砂輪軸向進給速度和減小工件轉速，採用粗粒度砂輪有利於提高磨削矽片的材料去除率，砂輪軸向進給速度對材料去除率的影響最為顯著；適當增大砂輪轉速，減小砂輪軸向進給速度，採用細粒度砂輪可以減小磨削表面粗糙度；在其它條件一定的情況下，砂輪速度超過一定值會導致材料去除率減小，主軸電機電流急劇增大，表面粗糙度變差；採用比# 2000粒度更細的砂輪磨削時，材料去除率減小，矽片表面粗糙度沒有明顯改善。

The papers also brings forward the design parameters of the material critical suspending speed and the wind capacity according the theory of the air transportation, analyses and build up the condition of material diameter and airflow speed of the gas - solid current locating the separating interface

論文根據氣力輸送理論求出螺旋氣力吸取料裝置物料的懸浮速度及風機風量的設計參數，分析確定位於分離界面處的氣固二相流處于層流狀態即處于粘性磨擦阻力區的粒徑條件與氣流速度條件。

The whole dissertation can be divided into the following parts : part one. make a definition of what critical thinking is, referring to the kinds of previous statements of it : critical thinking is a kind of rational thinking, " a kind of intelligence quality being able to strictly estimate material for thinking and exactly check thinking process " in thinking activities, a kind of all - range thinking model which, on the basis of independent thinking, decides to accept or question the material for thinking with reason and self - criticism from time to time

論文共分三部分：第一部分：在借鑒了前人對批判性思維的種種陳述之後，對何謂批判性思維進行了界定：批判性思維是一種理性思維，是一種在思維活動中「善於嚴格地估計思維材料和精確地檢查思維過程的智力品質」 ，是一種能在獨立思考基礎上有根據地做出肯定接受或否定質疑的決定，並能時時進行自我反省的、全面的思維。

Combined with movement character of debris under water, the stabilization and material translation over interface of two fluids is discussed. the critical conditions of interface stabilization are made

結合泥石流水下運動特點，討論水下泥石流的交界面穩定問題和交界面上的泥沙交換，給出交界面失穩判別式。

Made from thermo electrode, insulation material and metallictube, which are critical to produce sheathed thermocouple assembly and widely used in temperature measurement device for industrial applications

它是製造鎧裝熱電偶的關鍵材料，廣泛地應用於各工業部門的生產過程中的溫度測量裝置上二熱電偶的工作原理

The friction coefficient, critical vertical loads and critical frictional resistance strength have been worked out by means of the pullout tests under the different vertical loads, analysis of frictional characteristics between soil and material and analysis of the different work mechanism between direct shear test and pullout tests. the creep characteristic parameters of some typical reinforcement materials have been obtained by the creep tests under the loads for a long time and the rheological analysis

對幾種典型筋材在不同法向荷載下進行了拉拔試驗，並進行了筋材與土介質的界面摩擦特性分析，直剪試驗與拉拔試驗不同機理分析，找出了影響摩擦特性試驗結果的主要因素；得出了筋材在工作荷載階段的摩擦系數、臨界法向中南大學博士學位論文荷載和臨界摩阻強度。

In this paper, through the statistical analysis of the random factors in the stage of sub - critical propagation of cracks, the statistical correlation equations between the two material coefficients are obtained and can be generalized. furthermore, it can be concluded that cracks propagation rate is influenced greatly by material coefficients in the condition considered in this study

本文主要通過對亞臨界裂紋擴展階段各種隨機因素的統計分析，找到了可以推廣應用的，體現兩材料系數之間具有強負相關性的統計相關式，並驗證了在一定條件下，材料系數是影響裂紋擴展速率的主要因素。

In addition, the effects of stack structure and material property on the performance of the thermo - acoustic engine in terms of the critical temperature ratio were examined

結果表明，合理設計板疊的結構和合理選擇板疊的材料，可以使得系統在較低的溫度下起振。

Currently one of the major challenges associated with making mgb2 a useful superconducting material is to increase its critical current density at higher magnetic fields

要將硼化鎂製成有用的超導材料，目前最主要的挑戰之一，就是如何在較高的磁場下增加臨界電流密度。

The results showed that the fabric of the reinforced material was a very critical factor in the influence of tackifier contents and optimal tackifier contents on the mechanical property of composites ; the tackifier had no negative effect on mechanical property of 827 carbon fabric reinforcement composites and 3186 carbon fabric reinforcement composites, when tackifier contents was individually percent five and eight

結果表明：定型劑含量對復合材料力學性能的影響規律、定型劑最佳用量均對增強材料的織態結構有著很強的依賴性；在3186緞紋3266樹脂體系和827單向碳布3266樹脂體系中，定型劑用量分別為8 %和5 %時，定型劑的加入對復合材料的力學性能沒有造成明顯的劣化作用。

For detailed information on electronics components and critical material industries, please refer to the website of industrial technology intelligence services managed by

關于電子零組件與關鍵材料產業的詳細資訊，請參考