The results show that the rule of cutting steel and that of cutting concrete have little difference with the PREMAJet in water.

试验结果表明：前混合磨料射流水下切割混凝土与水下切割钢板规律基本一致。

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Experiments of cutting concrete block were conducted and the reason for different fonns on different cutting depth was analyzed.

对混凝土试块进行切割实验，并对分析同切割深度的不同形态所产生的原因。

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For cutting concrete in Nanjing note is very much, in the removal of concrete cutting technology in detail, security can not be ignored.

对于南京混凝土切割技术的留意事项是十分多的，在混凝土切割撤除技术中，细节安全不容忽视。

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Earlier this week African delegates boycotted some talks because they said developed nations were not making concrete promises on cutting greenhouse gas emissions.

VOA: standard.2009.11.06

So the scientists turned to their laptops, and using cutting-edge computational mathematics, modelled the concrete on the screen at a molecular level.

BBC: By Ian Hardy