紋孔對 的英文怎麼說

中文拼音 [wénkǒngduì]
紋孔對 英文
pit pair
  • 紋 : 名詞（花紋; 紋縷兒） lines; veins; grain
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  1. Scattering of sh - wave by a radial collinear crack at the edge of arbitrary - shape - cavity in isotropy media is studied. the solution of dsif at crack tips is obtained

    研究了各向同性介質中任意形孔邊徑向裂紋對sh波的散射，求解了裂紋尖端的動應力強度因子。
  2. The method of crack - division is used to make radial cracks at the edge of cavity. a series of integral equations for determining the dsif at tips of anti - plane crack are set up in terms of the green ' s function

    按「契合」的方式和採用裂紋切割技術構造出孔邊徑向界面裂紋對sh波散射的模型，利用green函數建立直接求解m型裂紋尖端動應力強度因子的定解積分方程組。
  3. The relationship between capacitance and corrosion conditions in the enlargement of tunnels justifies the latter competition mechanism the varied etching conditions were implemented by enhancing the passivating characteristics and viscosity, changing the a13 + concentration, temperature of etchants and current pulsation. passivating acid in the etchant is conducive to the instant passivation of exposed areas on the foil surface, and hence sustains the balance of competition between aggressive anions and passivators, providing pit nucleatiori sites continuously

    通過侵蝕液中添加草酸、硫酸、乙二醇，改變侵蝕液al ~ （ 3 + ）濃度和電流紋波等方法，研究了不同的侵蝕條件對隧道孔形貌和比容的影響，結果表明：草酸和硫酸既保護了鋁箔表面又促進了隧道孔孔壁的迅速鈍化，增加發孔密度。
  4. Close examination of the plug welds showed the existence of herringbone patterns near the slag and voids in welds.

    對塞焊焊縫的詳細檢查表明在焊渣及氣孔附近，焊縫中存在著人字型裂紋。
  5. Diagnostic characters for the recognition of species include the presence or absence of pectoral fin, the position of dorsal fin origin, gill opening, anus, nostril opening and eye, the cirri present or not, the dentition type, the body coloration, and the head pores or lateral line etc

    一般依據胸鰭的有無或發達程度，背鰭起點、鰓孔、肛門、鼻孔和眼等的相對位置，頜的發達程度和頜上是否具須，齒的形狀和排列方式，身體的斑紋，以及頭部和體側的側線孔數目等進行鑒別。
  6. Wood semi - ring - porous ; vessels solitary with angular outline ; perforation plates scalariform ; intervessel pits and vessel - ray pitting opposite or opposite to scalarifonn ; helical thickenings in vessel elements present

    梯狀穿孔板；管間紋孔式為互列；射線導管間紋孔式多對列，類似導管面間紋孔式。
  7. At the same time we study, analysis and discuss the action that non - linearity - stickiness - springiness and crazing damage of the pmma sample under creep though making us of the knowledge about the high molecule physics the damage theory of material of rheology of bodies with defects. through the study and theory analysis of single - axes stretching experiment in pmma sample under creep, take the surface crazing damage density of pmma sample as an variable, to look for a commonly rule that the crazing damage of pmma, and to offer a feasible damage model for the sake of study that of pmma ' s remoteness damage

    同時運用高分子物理、含缺陷流變性物體的材料破壞理論等知識，對無孔洞pmma試件和有孔洞pmma試件蠕變條件下非線性粘彈性行為及其銀紋損傷現象進行了研究、分析與探討，通過對蠕變條件下的pmma試件的單軸拉伸實驗研究和理論分析，以pmma試件的銀紋損傷面密度值為損傷變量，來嘗試尋求pmma銀紋損傷的一般規律，為研究pmma的細觀損傷提供了一種可行的損傷模型。
  8. At the surface of the pollen grains there are three types of aperturates, including three porates type, three colpates type and three porate - colpates type ; and four types of sculpture, namely, reticulate, striate, striate - reticulate and verrucate. the upper epidermal cells of the leaves of 12 species plants are detected with hpias - 1000 image analytic system through the treatment of binarization, and the experimental methods are proved stable. the results indicated that the waviness of the anticlinal walls ( sfc ) and the ratio of the feret ' s diameter ( slf ) of the epidermal cells of the middle lamina in the third node of leaves starting from the lowerest part of the stem have a relative constant range and could distinguish from each other. oieanolic acid, l, 5, 8 - trihydroxy - 3 - methoxyxanthone and swertiamarin are separately detected on the tlc, and the different chromatogram of various plants can be considered as characters of identification. the contents of oleanolic acid in 12 species of plants are determinated by hplc, but among the different plants and botanical organs their contents are different, and the highest content in flowers

    本文對川鄂產獐牙菜屬藥用植物資源進行了野外調查、標本採集和鑒定，對12種乾燥藥材的性狀進行了描述，提供了可以鑒別的特徵。通過掃描電子顯微鏡觀察的12種本屬藥用植物的花粉粒均為單粒花粉，萌發孔有3孔型， 3溝型和3孔溝型三種類型；表面紋飾包括網狀紋，條狀?網狀紋，條狀紋和瘤狀紋四種類型。用hpias ? 1000高清晰度彩色病理圖文分析系統對葉片上表皮細胞作圖像分析，並進行方法學研究，結果表明，同種植物莖上第3節葉片中段主脈和第1側脈之間葉上表皮細胞垂周壁彎曲程度sfc值和細胞縱、橫向直徑的比值slf值，種間有顯著差異，每種都有相對恆定范圍值。
  9. Implants for osteosynthesis - bone plates - specification for holes corresponding to screws with asymmetrical thread and spherical undersurfaces

    骨接合術用外科植入物.第23部分:金屬接骨板.第3節:不對稱螺紋球形底面螺釘的螺釘孔
  10. As an important step, the roll groove design - the selection of the roll groove system and the determination of the dimension, makes the decisive effect on the dimensional accuracy and the mechanic character of the tread steel bar

    孔型設計作為螺紋鋼筋生產中的重要環節，對螺紋鋼筋尺寸精度的高低起著決定性作用，孔型系統的選擇及孔型尺寸的確定直接影響到成品鋼筋的尺寸精度及其機械性能。
  11. Designing with this card system can shorten the design cycle of the new product, lowering the consumptions of the mills and the production cost, advancing the dimensional accuracy and the mechanical character of the finished thread steel bar. it has the important significance for increasing the economic benefit of the enterprise

    採用本螺紋鋼card系統進行孔型設計，極大地縮短了新產品的設計周期，降低了軋機能耗和生產成本，提高了螺紋鋼筋成品的尺寸精度和機械性能，對增加企業經濟效益具有重要意義。
  12. This research job analysised the extending roll pass system the finish roll pass system and the ultimate roll groove. the mathematical models and experience formulations used for roll pass design are corrected according to the basic theory and the practical experience of the engineerings. the thread steel bar card was set up with the visual program tool - visualbasic6. 0, based on the method of the structural program design

    本課題通過對螺紋鋼延伸孔型系統、精軋孔型系統及成品孔型的構成和設計方法的分析，結合螺紋鋼孔型系統的基本設計理論和工程技術人員的實際生產經驗，對以往孔型設計過程中所使用的數學模型、經驗公式等進行了修正，以結構化程序設計方法為基礎，採用可視化編程工具visualbasic6 . 0建立了螺紋鋼計算機輔助孔型設計系統。
  13. This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and

    本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是：根據光學玻璃的物理與化學性能，選擇輕型鏡坯材料；用有限元法對鏡子的變形進行分析、計算，找出變形規律，優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構；分析玻璃切削原理，設計專用磨輪結構，選擇合理工藝技術參數，完成400mm平面鏡輕量化減重孔的加工；分析氫氟酸腐蝕光學玻璃機理，尋找最佳酸濃度、腐蝕作用時間等工藝參數，實現400mm平面鏡減重孔應力與微裂紋的消除；討論分離器加工原理和工藝技術特點，完成400mm平面輕型鏡面形加工。
  14. A segment of the box corner was removed with a hole saw in order to permit an examination of the crack.

    為了對裂紋進行檢查，用圓孔鋸從箱型斷面拐角處鋸下一部分。
  15. Two spherical waves and multiple spherical waves interference, and yang ' s interference experiments are simulated by using different methods. two spherical waves interference is focused on the on - plane or out - plane of the spot light source plane and the observing plane. then, we analyze how the temporal coherence of optical waves influence the contrast of the interference pattern

    用光波波前疊加的方法實現了對兩列球面波干涉、多光束干涉等實驗的模擬；用傳播矩陣描述衍射光波波前傳播的方法對楊氏雙縫和雙孔干涉實驗進行了模擬，並具體詳細地分析了單縫衍射對雙縫干涉的影響；另外還分析了光場的時間相干性對干涉條紋反襯度的影響。
  16. On the basis of the experiment, the reason that high strength 7a52 aluminum alloy produced the familiar defects such as hot cracking, porosity, slag patch, etc. in the welding was analyzed, and the preventive measures of every defect were adopted

    摘要在實驗的基礎上分析了高強7a52鋁合金焊接時出現的常見焊接缺陷：熱裂紋、氣孔、夾渣等產生的原因，並對每種缺陷提出了預防措施。
  17. Analysis results of histogram statistics and section electron microscopic scan technique, are that fracture feature of the cracks of the hbbb is similar and the crack is multi - source strain fatigue one. internal defects of the cast, such as impurities, gas holes, etc, are the main causes for early cracks. the contrast analysis of static strength, model and transient respond on three structures with fem proves that geometrical stress concentration in partial area has influence on early crack, also

    利用直方圖等統計方法和電鏡掃描技術對該抱軸箱體裂紋分析的結果是：抱軸箱體的裂紋斷口特徵相近，裂紋性質屬于多源性低周疲勞裂紋，鑄件中的夾雜、氣孔等內部缺陷是導致過早裂損的主要原因；利用有限元法對該抱軸箱體三種結構的靜強度、模態和動態響應對比分析，證實了局部幾何性應力集中對過早裂損也有一定影響。
  18. Based on certain theoretical analysis and toward thick recast layers and flaw ’ problem in laser drilling, adopting high power and high quantity laser carry experimental research

    並在理論分析的基礎上以及針對激光打孔中出現的再鑄層和微裂紋等問題，採用研製的具有切割功能的高功率高光束質量的激光器，進行了激光打孔的實驗研究。
  19. Crossfield pit pair

    交叉場紋孔對
  20. Effect of defective hole on stress intensity factor of cracked plane

    缺陷孔對平面裂紋應力強度因子的影響
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