Similar words: dough, though, enough, witness, fitness, drought, roughly, through. Meaning: ['tʌfnɪs] 
n. 1. enduring strength and energy 2. the property of being big and strong 3. the elasticity and hardness of a metal object; its ability to absorb considerable energy before cracking 4. impressive difficulty.
n. 1. enduring strength and energy 2. the property of being big and strong 3. the elasticity and hardness of a metal object; its ability to absorb considerable energy before cracking 4. impressive difficulty. 
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31. The result shows that the sintering temperature of ceramic body is reduced, but the toughness is improved obviously on substitution of nepheline for feldspar.
32. The authors analysed the feasibility of adopting the suspension casting process to improve on the fracture toughness, the cold-short resistance, the fatigue resistance and the abrasive resistance.
33. Using the traditional type Fried badge of poles knife cut, rather than building machine pressure surface taste good, soft, smooth, toughness cortex.
34. The electrode has not only good usability but also low diffusible hydrogen, and the weld metal has matched strength and toughness.
35. The effect of hot deformation amount on impact toughness for Vanadium white cast iron was studied.
36. Castable refractories reinforced with steel fibers can make the toughness of furnace lining and its thermal shock-resistant property raised and improved obviously, and its service life prolonged.
37. The results showed that the iron with Co addition had the more nodule count and most ferrite in the microstructure, and better toughness but lower hardness.
38. The aim is to obtain a high yield strength, elastic limit and high toughness.
39. Abrasive ratio, thermal stability, impact toughness and cohesive strength are main performance figures of PDC.
40. Hilary Clinton has some of the key attributes of a good secretary of state — stature and toughness, but her status as an erstwhile Obama rival might undermine an traditional trump card.
41. The toughness may be well improved by postheat treatment which is large in energy consumption and long in working period.
42. The results proved that different series of SBS could increase the toughness of UP resin and the system was a blend multiphase system with SEM.
42. Sentencedict.com try its best to collect and build good sentences.
43. The effect of tiny amount of Titamium on the notch toughness of low carbon boron steel was investigated.
44. The prepolymer blending with AE resin can increase dramatically its toughness and tack of prepreg under room temperature.
45. This paper from the control of organization describes the fisability for much improvement of the toughness of the electro-slag welds.
46. Firstly, the chemical compositions of D406A steel, the non-metallic inclusion and microstructure were tested, and their effects on the fracture toughness were analyzed.
47. A wear resisting steel with high toughness has been studied.
48. These steels are aged hardenable martensitic steels. The superior combination of strength and toughness is achieved through precipitation of fine M_2C alloy carbide by quenched and aged treatment.
49. The result showed that after adding grain refiner, the hardness of magnesium alloys changed little while the impact toughness increased.
50. The tray can also achieve full plastic bearing, but far less plastic tray convenient toughness.
51. In physical and mechanical indexes, the basic density, air-dried density, compression strength parallel to grain, MOR, MOE and toughness of mature wood are higher than that of juvenile wood.
52. A toughness cushion ring is arranged at the bottom of the threaded column on the jar lid.
53. Fracture toughness of heat - affected zone ( HAZ ) was between the base metal and weld metal.
54. The use of compatibilizer could improve the toughness of the composite efficiently and its optimum content was 15% by weight.
55. Ferrite grain ultrafining technology for low carbon steel could increase strength, toughness and save resource.
56. CVN(Charpy V-notch) toughness and grain size number of J55 grade oil casings produced by Baotou Iron and Steel Company did not meet the reiative standards in the past.
57. The toughness will decrease because of the existence of hydrogen in the fusion zone.
58. To analyze the characteristics of TBCs such as residual stress, bond strength, fracture toughness, and crack propagation ratio, the Young's modulus and Poisson's ratio are important parameters.
59. These phenomena probably are the reasons why the strength as well as toughness of maraging steel is not influenced markedly by the prior austenite grain size.
60. Due to flexible filling material, the utility model can also make up the defects of inadequate toughness and elasticity of light wood.
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