by 2 orders of magnitude 增强两个数量级
The reduction of permeability is blow 2 orders of magnitude, and most is blow 1 order of magnitude.
渗透性降低一般在2个数量级以内，大部分在1个量级以内。
Meanwhile, on solving some complex problems, the speed is accelerated 2 orders of magnitude compared to software.
相对于软件实现，该系统在求解一些复杂问题时，速度可以提高2个数量级。
The results indicate that the optical nonlinearity of bulk material may be enhanced by 1 ~ 2 orders of magnitude through anisotropic microstructure.
结果表明，复合材料微结构的各向异性能够使得整体复合材料的非线性光学增强达1 ~ 2个量级。
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