Natural fiber is said to be __________ synthetic fiber. (superior)
superior to
举一反三
- It is said that synthetic fiber (合成纤维) i...ic fiber. (superior)
- Which of the following does not belong to natural fabric.( ) A: Synthetic fiber B: Pure cotton C: Pure hemp D: Cashmere
- Fruits are a good source of which nutrients? A: Vitamins, carbohydrates, and minerals B: Fats, carbohydrates and fiber C: Minerals, vitamins, and fiber D: Protein, fiber, and vitamins
- The phenomenon of shrinkage and swelling of wood occurs in A: below fiber saturation point. B: above fiber saturation point. C: above or below the fiber saturation point. D: no correlation with fiber saturation point.
- Which one has the function of defense and protection A: Matrix B: Collagen fibril C: Collagen fiber D: Elastic fiber E: Reticular fiber
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For fabrication of fiber reinforced composite, in which one weak<br/>interface is desired to ensure the composite possess high toughness.(<br/>) A: Carbon fiber reinforced titanium. B: Carbon fiber reinforced carbon composite. C: Glass fiber reinforced polymer.
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What is the main factor causing Rayleigh scattering? A: Defects equivalent to the wavelength scale of the fiber B: Defects equivalent to the geometric size of the fiber C: Defects equivalent to the length of the fiber D: Impurities
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Fiber reinforced polymer mainly refers to composite materials. If carbon fiber is embedded in epoxy resin, the strength of the composite will be increased.
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According to , optical fiber movable connectors can be divided into two types: aligning type and non-aligning type. A: Connection method B: Structure C: Optical fiber mutual contact relationship D: Optical fiber type
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Dietary fiber is ___ as the latest cure-all, which can cut down weight and promote good health.