What happens is the fluid that's sprayed into each fibre of the yarn starts to stiffen up and resist that mechanical strain.

渗入纱线纤维的液体黏性开始增大并阻止机械拉力。

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The strain sensitivity characteristic of long-period fibre grating (LPFG) was studied by coupled-mode theory and the strain sensitivity analytic equation of the resonant wavelength was deduced.

对长周期光纤光栅传输谱谐振波长的应变特性用耦合模理论进行研究，推导出谐振波长应变灵敏度的解析表达式。

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The forging processes of the both kinds of billets were simulated by contrast with FEM and the distributions of their velocity, strain and fibre flown line were gotten.

然后采用有限元方法，对圆柱形和锥台形两种坯料的成形过程进行对比模拟，进一步得到了它们在成形过程中速度场、应变场和金属纤维流线的分布规律。

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