几个句子,英译汉
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发布时间：2022-07-11 10:38
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时间：2022-07-11 10:44
2.The74mmsplit Hopkinson pressure bar(SHPB)test deviceforfour different contentof steel fiberconcrete(volume fraction of 0%,1%,1.5%,2% respectively)impact testingat -40 ℃,analyzestheinfluence onthe steel fiber reinforced concretestrain rateunder low temperature,low temperaturedynamics testthe content of steel fiberon theinfluence ofdynamic strengthofthemember.The resultsshow that:the addition of steel fiberon dynamic mechanical properties ofconcreteis improved,the quantity of steel fiberisidealfor2.5%.
