反射波法检测桩身混凝土完整性系统() ["速度型传感器灵敏度应大于100mv/g,","频带宽度应不窄于10~1000Hz,","放大系统增益应大于60DB,","采样时间为50~1000s"]
当保险公司实际经验成果优于()所产生的盈余,按一定比例向保单持有人进行分配 ["未到期责任准备金","定价假设","总责任准备金","预期利率"]
试验桩在沉桩后到进行加载的间歇时间() ["对粘性土不应少于14D","对砂土不应少于3D","水冲沉桩不应少于28D","对粘性土不应少于20D"]
配制高性能混凝土的掺合料适宜掺入量() ["磨细粒化高炉矿渣50~80%","粉煤灰25~50%","硅灰5~10%","早强剂"]
变压器出现以下哪个情况时可不立即停电处理()。 ["内部音响很大,很不均匀,有爆裂声","油枕或防爆管喷油","油色变化过甚,油内出现碳质","轻瓦斯保护告警"]
肉品的干制的方法及原理。