但这种技术所要求的知识远远超出了大多数非技术人员所掌握的范围。
But that kind of technical know-how would be beyond most non-technical people.
然而，当在工程中所用的石材超出规范要求，就没有工程技术规范可循，这给施工工作带来很大的困难。
There is still not the engineering technique norm when stone material plane set up in engineering goes beyond the standard, which brings very difficulty to construction work.
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