早硬强度 meaning in Chinese

early strength

Cement - part 4 : composition , specifications and conformity criteria for low early strength blastfurnace cements
水泥.第4部分:低早硬强度高炉水泥的组分规范和合格标准
Cement - part 4 : composition , specifications and conformity criteria for low early strength blastfurnace cements ; german version en 197 - 4 : 2004
水泥.第4部分:低早硬强度高炉水泥的组分规范和合格