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pressure vessel self-enhancement process
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pressure vessel self-enhancement process
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pressure vessel self-enhancement process
压力容器自增强处理
在压力容器制成后对其进行超压处理(压力大于内壁屈服压力),使容器内部产生一层屈服层;当卸压后,由于筒壁外层纤维保持弹性要恢复原状,而内层纤维已经产生塑性变形失去弹性,要阻止外层纤维的回缩,从而导致筒壁内层形成类似套合容器预压应力的现象。
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non-deterministic time, NTIME
non deterministic Turing machine
non-deterministic Turing machine
nondeterministic Turing machine
non-developable
non-developable ruled surface
non-developable surface
non-diagonal
non-diagonal element
non-diagonal term
non-diamagnetic plasma
non-differentiability
non-differentiable
non-differentiable curve
non-differentiable function
non-differentiable mapping
non differentiable optimization
non-differentiable optimization
nondifferentiable optimization
non-differentiable programming
non diffracted acoustic beam
non-diffracted acoustic beam
nondiffracted acoustic beam
nondiffracting beam
non diffraction beam
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