The diaphragm is made of a low mass polymer, carefully formed to broaden resonant modes to reduce their amplitude.

横膈膜是低质量的聚合物，仔细形成扩大谐振模式，以减少他们的振幅。

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When polymer relative molecular mass and its distribution width are the same, the polymer displacement efficiency increases with the increment of the core permeability variation factor.

当聚合物的相对分子质量及其分布宽度相同时，随着岩心渗透率变异因数的增大，其聚合物驱采收率也随之增加。

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Addition of small amount of crosslinking agent 1, 5-hexadiene could increase shear stability and relative molecular mass of polymer.

加入少量1,5 -己二烯能提高交联聚合物的抗剪切能力，同时也能提高交联聚合物的相对分子质量。

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The next generation of batteries--so-called lithium-polymer batteries--due in mass quantities sometime around the turn of the century, should extend that even longer.

FORBES: Running in place