... half-value layer ==> 半价层,半衰减层,半吸收层,半值层 half-value period ==> 半寿命,半衰期 half-value thickness ==> 半吸收厚度,半值层,强度减半厚度 ...
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Since pure foaming agent with short half-value period causes a poor plugging effect for high-permeability reservoir with water channeling,this paper studies on gel foam sysem.
针对纯发泡剂半衰期较短、对已形成注入水窜流通道的高渗透储层封堵效果较差的实际问题,开展了凝胶泡沫体系的研究。
参考来源 - 凝胶发泡体系室内实验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Since pure foaming agent with short half-value period causes a poor plugging effect for high-permeability reservoir with water channeling, this paper studies on gel foam sysem.
针对纯发泡剂半衰期较短、对已形成注入水窜流通道的高渗透储层封堵效果较差的实际问题，开展了凝胶泡沫体系的研究。
It showed that both the number and value of contracts awarded during the first half of this year had declined in comparison with the same period in 2006.
报告显示，与06年同期相比，今年上半年承包业务在数量及价值方面都有所下降。
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