In our country, concrete nondestructive tests are widely applied to estimate structural concrete strength because they have the characteristics of simple, easy for operating and lower cost.

在我国，混凝土无损检测以其简单、易行、经济等优点被广泛应用于结构混凝土强度评定。

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And this, in turn will force them to revise up their estimate of the structural deficit.

BBC: George Osborne must weigh supply against demand

As I wrote in my earlier blog, the IFS and pretty much every other economic forecaster expected the OBR to raise its estimate of the structural current deficit, given what we knew about the way they forecast these things.

BBC: The Bank, the OBR and Mr Osborne