2021年1月21日是微信诞生十周年的日子。
对微钒钛高抗震性能建筑结构钢进行了模拟地震载荷高应变低周疲劳试验。
The high strain low cycle fatigue properties of V ti micro alloyed high anti seismic structural steel were studied with simulated earthquake loading.
四川盆周山区猕猴桃施肥技术的关键在于大力增加有机肥的投入、重视微肥的有效施用、推广测土配方施肥。
The key to fertilization technology lies in increasing investment of organic fertilizer, paying attention to microelement fertilizer's application and extending fertilizer formula after soil testing.
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