In addition, more recent and larger and longer PPA exposures were related to increased stroke risk.

此外, 近期、大剂量和长期服用PPA与增加中风风险具有相关性.

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Unreinforced toughened high performance polyamide resin . PPA resin.

无加强增韧高性能聚酰胺树脂.

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TEM photograph shows the orientation and arrangement of PPA molecular chains in the monolayer is regular.

TEM照片显示,聚苯乙炔分子链在单分子膜中是有序排列的.

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Mean pulmonary arterial pressure ( Ppa ) was elevated from 2.84±0.06 kPa to 3.33±0.07 kPa ( P < 0.001 ).

肺动脉平均压由2.84±0.06kPa上升到3.33±0.07kPa ( P<0.001 ).

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It has excellent resistance and retention of properties in moist environments . PPA resin.

它具有优良的耐高温性能,并保留在潮湿的环境.

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But Mr Tobaccowala thinks pay - per - action could become a real alternative to pay - per - click.

但Tobaccowala认为, PPA 有可能成为“点击付费”的真正替代模式.

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