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yarn
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  纱线
    The surface morphology,crystal structure and mechanical property of the electrospun nylon 6/66 yarn were measured.
    用此法将原料尼龙6/66纺制成直径为500nm以下的纤维构成的纱线,并分析了该纱线和纤维的外观形态、结晶结构及其力学性能等。
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    The necessity and principle of making the terylene harness have been discussed in this paper,and the optimum technology in development of terylene harness has been inquired into by use of yarn structure designing,alkali decrement handling and suitable starching dispensation etc.
    论述了生产涤纶通丝的必要性和制作涤纶通丝的过程,采用纱线结构设计、碱减量处理、配置合适的浆料等方法探讨了研制涤纶通丝的最佳工艺。
短句来源
    Polyamide Tire Cord Technology--From Basic Tire Yarn to Dipped Fabric
    聚酰胺轮胎帘子线技术——从内胎纱线到浸渍织物
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    (5) With the increase of twists, the lightness and saturation of the yarn will vary with thetwist according to the rule of negative exponent, and the proporation of external reflectionlight will decrease, which causes its hue to be slightly partial to “blue” shade.
    (5)随着捻度增加,纱线明度L和饱和度C呈负指数规律下降,而且表面反射光比例下降,导致色调角向“蓝”光方向略有偏移;
短句来源
    In this paper,we discussed the friction spun hybrid yarns in detail,spun several types of hybrid yarn and analyzed their structures by SEM and yarn evenness tester.
    本文对这种摩擦纺混纤纱加工方法进行了进一步讨论,纺制了几种混纤纱并通过扫描电镜和纱线均匀度测试仪研究了其结构。
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    DEVELOPMENT OF POLYESTER MICRODENIER YARN
    涤纶细旦产品开发
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    AUXILIARY UNIT FOR WITHDRAWING POY YARN IN AFTER-TREATMENT
    POY后加工退绕辅助装置
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    THE TECHNOLOGY OF 5OD TEX/34F POLYESTER INTERLACED BRIGHT TRILOBAL SET YARN
    50dtex/34f有光三叶涤纶低弹网络工艺探讨
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    THE PRODUCTION OF FINE DENIER POLYESTER YARN WITH HIGH SPEED
    涤纶细旦高速纺问题探讨
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    A Study on Thermal Shrinkage Behavior of Viscose Yarn
    粘胶纤维束热收缩行为的研究
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  “yarn”译为未确定词的双语例句
    THE ANALYSIS AND APPLICATION OF SPECTROGRAM OF USTER YARN EVENNESS METER
    USTER条干均匀度仪谱图分析及应用
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    MANUFACTURE OF 76dtex/48f POLYESTER DRAW-INTERLACED YARN
    76dtex/48f涤纶牵伸网络丝的生产
短句来源
    THE ENGINEERING DESIGN OF NYLON 6 DRAW-INTERLACED YARN
    浅谈PA6拉伸交络丝的工程设计
短句来源
    WET HEAT RESISTANT PROPERTY OF POLYESTER INDUSTRIAL FILAMENT YARN
    涤纶工业长丝耐湿热性能的研究
短句来源
    WINDING KINEMATICS ANALYSIS FOR EXPLANATION OF POY COBWEBBY YARN
    POY蛛网丝产生原因的卷绕运动学分析
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  yarn
Influence of peat humus acid microadditions on the structure of starch gels for sizing cotton yarn is studied by rheology.
      
Air jet loom, as one of the shuttleless looms, transports a yarn into warps using viscosity and kinetic energy of an air jet.
      
Cotton yarns were coated with a polymer solution to hold surface fibers to the yarn body, which caused fiber-fly generation during knitting process.
      
The physical property of the coated yarn, especially a bending rigidity was investigated in order to evaluate the performance of the coated yarn during knitting.
      
SEM images showing the surface condition of the coated yarn demonstrated that the thickness of a coating material increased as the concentration of the coating solution increased.
      
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Through a comparative study with seven other agricultural by-products, for manufacturing viscose rayon pulp. It was found that wheat straw is the most hopeful raw material, both from the technical and economical point of view. Laboratory pulping can be efficiently conducted by the prehydrolysissulphate process, at 160° for 3 hours, during which is consumed 15-20% total alkali with a sulphidity of 25%, followed by chlorination, alkaline extraction and bleaching. During the multi-stage bleaching process the total...

Through a comparative study with seven other agricultural by-products, for manufacturing viscose rayon pulp. It was found that wheat straw is the most hopeful raw material, both from the technical and economical point of view. Laboratory pulping can be efficiently conducted by the prehydrolysissulphate process, at 160° for 3 hours, during which is consumed 15-20% total alkali with a sulphidity of 25%, followed by chlorination, alkaline extraction and bleaching. During the multi-stage bleaching process the total chlorine and alkali consumption are 3-5% and 1-2% respectively. The resulting pulp possesses a degree of polymerization of around 900 and an α-cellulose content of 93-94%. It was successfully utilized in the manufacture of viscose rayon on a laboratory machine with a capacity of 1 kg. per batch, resulting in a yarn of good quality, say, a tenacity of 1.7-1.8 g./den, and an extensibility at break of 13%.

与其他七种农林副产和廢料比較之下,本文指出小麦杆在制漿和紡絲方面的合适性和經济价值。在制漿方面,采用预水解硫酸鹽法。經过研究全硷量、硫化度和溫度三因素对蒸煮的影响之后,認为蒸煮时用15—20%的全硷量,25%硫化度,升溫90分鐘,保持160°3小时,然后再进行多段漂白,即可得适于粘膠法紡絲的漿粕,成絲性質良好。

The sound velocity in a fibre shows a pronounced anisotropy, that is, the sound velocity along the axis of an oriented fibre is much greater than that perpendicular to it, and therefore it may be used as a measure of the molecular orientation α in the fibre,α= 1 - Cα2/C2where C and Cu are velocities of sound along an oriented fibre and a completely un-oriented fibre respectively.The apparatus used consisted of a pulse generator which sends a pulse of 70 μsec duration with a repetition frequency of 100 times...

The sound velocity in a fibre shows a pronounced anisotropy, that is, the sound velocity along the axis of an oriented fibre is much greater than that perpendicular to it, and therefore it may be used as a measure of the molecular orientation α in the fibre,α= 1 - Cα2/C2where C and Cu are velocities of sound along an oriented fibre and a completely un-oriented fibre respectively.The apparatus used consisted of a pulse generator which sends a pulse of 70 μsec duration with a repetition frequency of 100 times per second to the moving coil of a loud speaker. The fibre was coupled to the vibrating membrane through a spring clamp. When exited by the pulse, the system underwent damped oscillation with a natural frequency of about 4000 Hz. At the other end of the fibre, about 200 cm from the clamp, a crystal pick-up was located, the output of which was sent to an oscilloscope with the sweep circuit triggered by the pulse voltage. The time of propagation of the longitudinal vibration along the fibre from the clamp to the pick-up was observed from the oscilloscope record, and the sound velocity in the fibre calculated.Since the mechanical properties of fibre depend considerably on the moisture regain and tension, the effect of relative humidity and tension in the fibre on the sound velocity were studied.The best choice of the experimental conditions for the determination of molecular orientation by the sound velocity method appears to be the following: room temperature, 28 - 30℃; relative humidity, 60%; and under a tension somewhat below the critical Young's modulus of the fibre.The sound velocities in the fibres of different draw ratios (r) were determined and extrapolated to r = 1 to give the value for Cu. Experimental results indicate that the degree of molecular orientation of monofils of Nylon 6 increases to approximately 80% after drawing and after-treatment.The degree of orientation for several products of Nylon 6 fibre such as yarns, monofils, and cords was determined. Fibres that possess greater breaking length show higher degree of orientation.

纤维具有声学的各向异性,声波通过纤维的速度与纤维中高分子链的取向程度有关。测定声波沿纤维轴方向的传播速度可以计算纤维的取向度α: α=1-C~2_u/C~2其中C及C_u分别为声波通过取向及无规取向纤维的速度。 实验仪器采用每秒100次的脉冲电流输至高音喇叭的音圈,纤维通过弹簧夹子与喇叭振膜的中心相耦合。脉冲电流激发喇叭振膜振动系统,使产生逐渐衰减的固有频率振动(约4000赫)。离振源200厘米处的纤维另一端有拾音器,其输出讯号接至由脉冲电压触发扫描的脉冲示波器,从示波器可以观察到从振源到拾音器的距离间声波在纤维中的传播时间,由此计算出声波通过纤维的速度。 纤维的吸湿性与所受张力不同对其力学性貭均有影响,因此研究了相对湿度与张力对纤维中声速的影响,并选择了在室温(约30℃),相对湿度为60%和在小于纤维的临界杨氏模量的作用张力下进行声速法测定纤维的取向度。 研究了不同拉伸程度单纤维样品的声波传播速度,并外推到长度拉伸比为1时作为声波通过无规取向纤维的速度。实验结果表明,尼龙6纤维的取向度经拉伸与后处理逐渐增大至80%左右。 测定了不同品种的尼龙6纤维的取向度,具有较大强度的纤维其取向度较大。

The heat treatment of commerical PET yarn (76 denier, 24 filaments and zero twist) was done for a short time at 160, 180, 200, 220, 240, 250 and 260℃ under low tension. The structure ef the samples has been studied by means of small-angle X-ray scattering and wide-angle X-ray diffraction. The long period and the crystallite size obtained from 105 diffraction increases with the increase in Ta, the heat treatment temperature. After a minimum at about 200℃, the amorphous length increases with Ta. X-ray azimuthal...

The heat treatment of commerical PET yarn (76 denier, 24 filaments and zero twist) was done for a short time at 160, 180, 200, 220, 240, 250 and 260℃ under low tension. The structure ef the samples has been studied by means of small-angle X-ray scattering and wide-angle X-ray diffraction. The long period and the crystallite size obtained from 105 diffraction increases with the increase in Ta, the heat treatment temperature. After a minimum at about 200℃, the amorphous length increases with Ta. X-ray azimuthal scans of the 105 arcs were resolved through a computer, which fits Gaussian function to the arc profiles, The width of the arc decreases, but the separation angle of 105 arcs increases with the increase in Ta. These assert that there is an increase of crystallite orientation with Ta. The mechanical properties of the samples were tested. The tenacity appeals to depend on the degree of crystallinity (=D/L).

商品涤纶长丝(76分号,24根,无捻)在1克拉力下于160、180、200、220、240、250和260℃进行2秒钟热处理,用小角X光散射和宽角X光衍射研究了各样品的结构,长周期和曲105衍射所得到的晶粒尺寸均随热处理温度T_α的升高而增大,I05衍射弧的方位扫描曲线用计算机进行分峰处理,所用拟合函数为两个高斯函数之和。随着T_α升高,I05弧的宽度下降,但其分离角增大,这说明晶区取向随T_α升高而改善。测定了样品的力学性能,发现纤维的强度与其体积结晶度(D/L)有密切关系.

 
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