Sandwich structure is a bearing structure with excellent mechanics performance, which can fully display material function, ensuring materials maximum utilization, achieving the result of steel saving.
夹层结构是一种力学性能优越的承载结构，它可以充分发挥材料的作用，做到物尽其利，达到节约钢材的效果。
For a large tubesheet, performing stress analysis is especially useful for saving the material while keeping sufficient strength of the tubesheet.
在大直径的场合下，正确分析管板受力状态，对保证换热器安全运行和节约材料等起着非常重要的作用。
This kind of heat preservation and heat insulation material with its unique performance to create a new situation of the heat preservation and heat insulation and energy saving.
这种保温隔热材料将以其独特的性能开创保温隔热节能的新局面。
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