硬度和強度 的英文怎麼說
中文拼音 [yìngdùhéqiángdù]
硬度和強度
英文
design for manufacturing stiffness and strength-
There are changes in mechanical properties of the fabric such as weight, thickness, stiffness, permeability, or breaking strength and elongation.
有織物機械性能的改變，諸如重量，厚度，硬度，透氣，斷裂強力和伸長度等性能的改變。But the latest doha setback ? a failed ministerial summit between the round ' s self - styled leaders, america, the eu, india and brazil, in potsdam on june 21st ? had less to do with rich - world rigidity than indian indifference and brazilian brinkmanship
但是最近的多哈回合的挫折? ?美國，歐盟，印度以及巴西6月21日在波茨坦市（舉行的）自封的領導們之間的部長級峰會? ?是談論印度的冷淡態度和巴西的邊緣性政策多於處理富國的強硬政策。Degenerate oligonucleotides to highly conserved regions of cucumis melo 1 - aminocyclopropane - 1 - carboxylic acid ( acc ) oxidase gene were used to prime the amplification of fragment of 128bp by ploymerase chain reaction ( pcr ) in samples of genomic dna from fruit of cucumis melo l. cv hetao flesh, which was cloned into plasmid vector pmd - 18 - t. the clon of antisense orientation were selected, and it was inserted downstream of camv35s promoter and enhancer " " of tmv into the plant expression vector pbinyxw, antisence expression vector pbinya was constructed. at the base that pollination and fertilization of cucumis melo l. cv hetao was studied, using pollen tube pathway transformate cucumis melo l. cv hetao, 76 fruit had been obtained, moreover, hardness and content of sugar were analysed
本實驗以河套蜜瓜果肉基因組dna為模板，用甜瓜acc氧化酶基因特異寡核苷酸鏈為引物進行pcr擴增，得到128bp的擴增產物。將得到的擴增產物克隆到質粒載體pmd - 18 - t上，篩選反向克隆，然後將其反向構建到植物表達載體pbinyxw的camv35s啟動子和tmv增強子「 」的下游，構建成反義表達載體pbinya 。並在對河套蜜瓜授粉受精生物學研究的基礎上，通過花粉管通道法轉化河套蜜瓜，共獲76顆瓜，並進行了硬度和含糖量的分析。Cyclic pressing is a new kind of densification processing, which is introduced to densify as - deposited ring of al - 20 % si / sicp. this paper includes the densification result and rule of this technics. the research shows that this technics can be successfully used to densify spray - forming porous material and can be availably adopted to improve mechanical performance and microstructure. this technics is characterized by simple equipment 、 small expense and flexible process, and these characters will make it come true to producing spray - deposited rings less costly
本文採用一種新型緻密化工藝?楔壓工藝?對噴射沉積al - 20 % si / sicp大環進行了緻密化加工，採用密度硬度分佈、抗拉強度變化和檢測顯微組織變化的實驗研究方法對其緻密化效果及該工藝規律進行了研究，通過研究表明了楔壓工藝可以成功地用來緻密化噴射沉積多孔材料，該工藝有效地提高了噴射沉積大環件的緻密度和抗拉強度並改善了組織。Ebonite - determination of tensile strength and elongation at break
硬質橡膠拉伸強度和拉斷伸長率的測定The results indicated that, the fabrication process of ultra - fine grain material is mainly determined by the stress, rotate speed and the flux of cooling water. the grain refining and the hardening effect are mostly affected by the rotate speed and the flux of cooling water. compared with commercial ly12, the invalidate strength and the prolongation rate of the ultra - fine grain material are properly improved in the measurement of compression property ; and the abrupt change of the dilatability of the ultra - fine grain material at 500c is found ; also the phenomena of which the grain size of these microstructures is stable when annealed under 300c is observed
研究表明，採用本文提出的摩擦壓扭強變形區轉移法可以得到棒狀的超細晶材料，軸向壓力、扭轉速度和溫度是採用該方法制備超細晶材料的主控參數；試件的旋轉轉速和冷卻速度對變形區晶粒細化和硬化效果影響顯著；超細晶ly12的壓縮性能與淬火+自然時效狀態的ly12壓縮性能相比，斷裂強度和延伸率均有一定程度的增強；超細晶ly12的熱膨脹系數在550左右發生明顯的變化。Results of experiment show that the reason of strength decreasing of gypsum added with retarders is that the retarders reduce the supersaturation of liquid phase, and makes the crystal grain largen, and pore is followed to worsen, which lead to the strength drop to a large degree
實驗結果分析表明：在摻加緩凝劑后石膏硬化體強度下降的原因在於緩凝劑降低了石膏的液相過飽和度，使結晶顆粒變大，使石膏的孔結構惡化，最終導致了宏觀強度大幅度下降。Through the theory of light radiation and intensity, we can use the fewest leds to satisfy the luminous intensity demand. through image segmentation theory, we can accurately pick module up from the test stripe when it is put in wrong directions. through image processing theory, we can acquire correct information and avoid the bad effects from the asymmetric chemistry reaction and instability of the devices
用光的輻射和強度理論，我們計算出了獲得足夠圖像強度所需的最少光源;用圖像分割理論，我們在試紙條傾斜放置或有垂直方向上的偏移時，準確地提取出了各模塊的數據;用平滑濾波和均值濾波理論，我們濾除了由於反應不均勻及硬體設備不穩定帶來的噪聲;用交遇區設計線性分類器的方法，我們降低了有限樣本設計線性分類器帶來的誤差，提高了檢驗準確度。Design for manufacturing, stiffness, and strength
生產設計，硬度和強度A kind of new way for surface rolling processing of stainless steel rod has been put forward, thus made an enhancement on the mechanical properties of surface hardness and fatigue strength of steel rod after rolling and solved the difficult problem on the processing length of steel rod being limited by the bed length of machine tool in the traditional processing method
摘要提出一種新的不銹鋼棒表面滾壓加工方式，使得滾壓后鋼棒的表面硬度和疲勞強度等機械性能得到提高，解決了傳統加工方式中鋼棒加工長度受機床床身限制這一難題。Some alloying element s make the grain of steelfiner, thus increasing the hardness and st rength ofsteel
某些合金元素可精化鋼的晶體度，從而提高了鋼的硬度和強度。The increase in hardness and strength of a ductile metal as it is plastically deformed below its recrystallization temperature
塑性材料于再結晶溫度以下進行塑性變形引起的硬度和強度升高現象。Heavy duty slideways and spindle support housings give extra strength and rigidity, reducing the risk of deflection and guaranteeing a long productive life
重型導軌和主軸支撐套加大了設備的硬度和強度，減少偏差，保證了較長的設備壽命。The dominant parameters on the anti - erosion proportion of materials are rigidity and intensity at lower impact angle, while the main parameter is toughness at normal impact. the ni - based alloy coating and ni - based alloy / sic coating have been obtained by laser cladding
決定材料抗低角沖蝕磨損性能的主要因素是硬度和強度，抗高角度沖蝕能力取決于材料的韌性，在實際應用中需要綜合考慮這幾個因素。Cnx coating provided a comparable to or better surface than dlc for the normal cellular attachment, growth and morp hology. compared with dlc, cnx coating also exhibited higher hardness, lower coefficient of friction, lower roughness, and lower corrosion, which obviously contributed to more sp3c structure and indicated a longer wear and corrosion life for cnx coating
本試驗中所制備的碳氮薄膜和類金剛石薄膜都具有很好的光潔度，但cn膜表面的針狀突起少於dlc膜表面，整體更加勻實光滑，三種薄膜的硬度和拉伸強度都很高，顯示出良好的機械性能和很低的摩擦系數。( 2 ) because of t he variability of rock subjected to outside action, three new conceptions : postive damage basic damage and negative damage, are suggested, which can deal with the condition that rock density became large. ( 3 ) the present damage variables based on ct number mostly include ct average number of the rock without damage, which is difficult to measure, so a new damage variable, which includes the average ct number is proposed, on the other hand, strain equal theory is generalized because the one put foreword by lemaitre is not good enough to use. ( 4 ) a axial damage constitutive equation is proposed and testified. ( 5 ) with the circle times, the damage propagation laws of two different rocks, subjected to circle of freezing and thawing, are studied, and in the analysis process, traditional analysis method including average ct number and is used, some important conclusions are reached : inner damage of soft rock containing a large mount of apertures is largely propagating with the time increasement of circle, however, at the preliminary time, the hard rock containing a small mount of aperture is a little propagating, at late time, the influence become large ; ( 6 ) zone separation and statistics frequency put forward is used to analysized the three different damage propagation in the open circumstance, when they are subjected to the different circle times of freezing and thawing, in which the temperature variability is linear, different freezing rate, and different freezing temperature, and no water is supplied during the test
在研究過程中本文主要做了以下工作： （ 1 ）針對巖石損傷變化較小時，運用ct均值和方差分析不方便的缺陷，本文提出運用對ct數范圍劃分區段的方法，根據各區段統計頻率的變化規律來分析損傷擴展狀況； （ 2 ）針對巖石受到外部作用的多變性，本文提出了基準損傷，正損傷，負損傷的概念，在某種程度上考慮了巖石受到外部作用時的壓密情況； （ 3 ）現有的基於ct數的損傷變量大多需要用到巖石基體的ct均值，這實際上是很難觀測到的，因此本文建議了一個可運用巖石初始狀態ct均值的損傷變量，由於現有的勒邁特教授應變等價原理使用上的不便，本文在其基礎上進行了推廣； （ 4 ）建議了一個可用巖石初始狀態ct數和彈性模量的單軸損傷本構方程，並用算例進行了驗證； （ 5 ）對兩種不同巖石在開放環境下受到凍融循環作用且融化過程中補水時，內部損傷隨凍融循環次數增加的擴展規律進行了探討，主要運用了常規的ct均值和ct方差的分析方法進行分析，試驗發現：對于孔隙率和含水率較高，密度和強度較低的軟弱巖石，凍融循環次數對損傷結構的擴展有明顯的影響，而對于孔隙率和含水率較低，密度和強度較高的硬巖，凍融循環次數對其損傷結構擴展初期由於含水率低的原因，影響不是太大，而後期由於水補給后，含水率較高的原因，凍融影響逐漸增大； （ 6 ）運用了本文提出的區段劃分和統計頻率的方法，深入地分析了開放環境下的線性溫度變化的凍融循環次數，凍結溫度，凍結速度不同巖石作用時，其內部損傷隨凍融循環次數，凍結速度和凍結溫度變化的擴展規律，需要指出的是除了在試驗前飽水外，凍融過程中沒有補水。When sintered at 1050c, the wear resistance of the composites were better than that of the ferroalloy under both low and heavy load without oil lubrication. the wear resistance, hardness, and other mechanical properties of the composites with nickel coated sic were better than those of the composites with bare sic particles. however, when sintered at 1100c, interfacial reaction became so acute that the properties of the composites with nickel coated sic particles was worse than those of the composites with bare sic particles
試驗結果表明：與鐵合金相比，在1050時燒結時，加入適量的sic后，耐磨性有較大的提高；而且加入鍍鎳sic的復合材料的耐磨性、硬度和拉伸強度等力學性能比加入相同含量的未鍍sic的材料的性能要好；在1100燒結時，由於界面反應的加劇，含有鍍鎳sic材料的性能反而比含有未鍍sic材料的性能差。In order to apply die - casting into particulates reinforced aluminum matrix composites, which would make this kind of material used more and more widely, the shaping properties of the composites in semi - solid were studied and complicated parts were die - cast with the composites in this paper
為了將壓鑄工藝與顆粒增強鋁基復合材料很好地結合起來，擴大鋁基復合材料的應用范圍，本文進行了復合材料成型性能測試、復雜件的壓鑄試驗，並研究了壓鑄件的微觀組織、硬度和耐磨性能。And the microstructure, the hardness and the wear resistance properties of the composites fabricated by semi - solid casting had been studied and analyzed
本文採用半固態復合鑄造法制備了sic顆粒增強鋁基復合材料，同時研究了復合材料的微觀組織、硬度和耐磨性能。By the addition of copper coated carbon fiber, the bend strength and hardness of cf / cu ( c ) - cu composites increased, the volume density and electrical conductivity of the composite have no apparent change
與銅-鍍銅石墨復合材料相比，碳纖維鍍銅石墨-銅復合材料的硬度和抗彎強度有了進一步的提高，密度和電阻率變化不大。分享友人