細小的裂紋 的英文怎麼說
中文拼音 [xìxiǎodelièwén]
細小的裂紋
英文
a hairline crack/fracturee- 細 : 形容詞1 (條狀物橫剖面小) thin; slender 2 (顆粒小) in small particles; fine 3 (音量小) thin ...
- 小 : Ⅰ形容詞1 (體積、面積、數量、強度等不大) small; little; petty; minor 2 (年紀小的; 年幼的) youn...
- 的 : 4次方是 The fourth power of 2 is direction
- 裂 : 裂動詞[方言] (東西的兩部分向兩旁分開) open
- 紋 : 名詞(花紋; 紋縷兒) lines; veins; grain
- 細小 : very small; tiny; trivial; micr-; micro-; -ling
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Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes
本文所做的主要工作包括以下幾個內容:一、選取了常見的熱膨脹系數大的材料製作封裝元件,經過多次一80到80反復測試,封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷,封裝材料具有良好的溫敏穩定性及復用性,與光纖相容性較好;二、對光纖光柵進行簡單、實用的封裝處理,就封裝效果的優劣性、波長測量的準確度、重復性和封裝時產生的波長損失等方面進行了一系列的實驗,得出了初步的結論;三、對溫敏和溫度補償式封裝的實驗數據進行了詳細的分析和對比,從數字上對溫變過程中光纖光柵中心波長的改變及溫變曲線進行了定量的分析,在大量實驗數據分析結果的基礎上,總結出哪種材料封裝效果更好,以及如何有效的減小實驗誤差。Live tuft is it point tiny tuft split, have various, distribute on if " the nail is sewn " in first form on the surface mainly to split, from form " burn caused by fire " that take the form of fish scale film in arriving, unanimous direction careful " detailed ox hair " of crackle, etc
活綹裂指細小的綹裂,有各種各樣的,如主要分佈於表面上如甲狀的「指甲縫」 ,由表到內呈魚鱗片狀的「火傷性」 ,多呈一致方向細致裂紋的「細牛毛性」等。You can add materials to clay to gain desired results, for example, you can add sand to prevent tiny breaks or lamieslines from forming in the finished product, but you should not use sand from the coldest severlcoastsof oceans
你可以在粘土內放入一些物質來達到預想的結果,比如,你可以增加沙子以防止在最後的成品中出現細小的裂紋或者細縫。The fining grains of al - l % si could accelerate the fatigue crack propagation from the near threshold zone to paris zone
隨著疲勞裂紋擴展速率從近門檻值區向paris區過渡,細小的a ( a1 )晶粒會加速疲勞裂紋的擴展。( 3 ) there are many flaws in direct laser metal sintering, such as the high remnants stress, micro - hole and micro - crack in sintering parts. in order to solving those problems, the programming of scanning paths is put forward, and several parts are prepared with different scanning paths respectively. the following conclusion is educed : the parts produced with short - side scanning path and same scanning direction have the minimum structure, the rigidity of parts prepared by short - side and same direction scanning path is highest, and the density of parts produced with the vertical scanning path is maximal
( 3 )針對採用大功率激光直接燒結鎳基高溫合金成形金屬零件存在的問題,如較大的殘余應力,製件中存在著微裂紋、微孔洞等缺陷,初步提出掃描路徑的規劃,並採用幾種不同的掃描方式進行燒結試驗,發現採用短邊掃描路徑和同向掃描能夠獲得更加細小和分佈均勻的組織結構,採用短邊同向路徑制備的試樣其顯微硬度最高,而採用變向掃描(垂直)路徑制備的試樣緻密性最好。After heat treatments, the granularity of powders increases and ultraf ine grains decreases. cracks appear on the surface of powders. so the rigidity of powders descends
熱處理后粉末的粒度增大,微細顆粒的比例減小,表面出現裂紋,降低了粉末的硬度,同時粉末團聚作用減弱。In this paper, two factors that will threaten the operating stability were studied, which are sand abrasion and cracking of the blades. and other problems that affect the safety in production were discussed
本文對影響小浪底電站穩定運行的泥沙磨損問題和轉輪裂紋問題進行了詳細的分析,並對其它影響機組穩定運行的現象進行了研究。Experimental results indicated that the polypropylene fiber can improve the workability of concrete availably, and can increase the presentation quality of structures with the voids and pits decreased ; the cracks of beam are controlled effectively, the width and length of crack decreased, the dispersibility of crack in beam face improved, and the ductility of beam increased ; and the cracking load of reinforced concrete beam is increased, the amplify up to about 30 %, simultaneity the ultimate bear capacity increased
試驗研究表明,使用聚丙烯纖維后,能有效改善新拌混凝土的和易性,並能增強混凝土構件的外觀質量,減少構件表面蜂窩、麻面、氣孔、細小裂紋等;同時,在破壞試驗過程中發現梁的裂縫能得到有效控制,裂縫寬度減小,裂縫的發展高度降低,裂縫的條數增加,提高了梁截面的裂縫分散能力,增強了梁中混凝土的韌性;提高了鋼筋混凝土梁的開裂荷載,幅度可達30左右,增強了結構的延性,提高了結構的抗裂性能和屈服荷載。At first, ploygon aggregate structure of concrete is randomly generated in two - dimensional plane with monte carlo method on the meso - level. then, the growth process of a crack of concrete 3 - point bending beam specimen is analyzed by fem, according to the criterion of maximum circumferential tensile stress. and the path of crack to spread in mortar, aggregate and interfaces of them is gained by the ultimate fracture criteria in construction standard that the width of crack should not be more than 0. 2mm
首先,在細觀層次上,根據蒙特卡羅隨機抽樣原理,在二維平面上建立了混凝土多邊形隨機骨料結構模型,然後採用有限元計算方法,根據最大周向正應力準則,對三點彎曲梁構件進行了開裂過程的模擬,並以建築規范中構件裂縫小於0 . 2mm的要求為最終破壞標準,得出了裂紋在基質、骨料及界面的擴展路徑。分享友人