The influences of vacuum dewatering treatment on the capability of concrete in carbonation resistance are analyzed.

分析了真空脱水对混凝土抗碳化能力的影响；

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The prestressing duct vacuum grouting workmanship is an effective measure for improving the safety and durability of the post-tensioning concrete structures.

预应力管道真空辅助压浆工艺是提高后张预应力混凝土结构安全度和耐久性的有效措施。

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Bearing upper load, a reinforced concrete structure with a pile foundation is the foundation of RH-TB vacuum recycling degassing installation.

TB真空循环脱气装置设备的基础是承载上部荷载的桩基承台钢筋混凝土结构。

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Concrete proposals are being floated in a vacuum, with no recognition of fundamentals.

FORBES: Anti-Immigration Rhetoric Frighteningly Reveals Education's Failure

The BBC's Musonda Chibamba in Lusaka says many Zambians doubt that he will be able to do so and want concrete information on how soon the leadership vacuum can be filled.

BBC: Zambia leader health probe urged