低标号 meaning in English
low-grade
◇低标号水泥 low-grade cement (指400号以下的)
Examples
- No data show that engines designed strictly for regular run better or longer on premium
没有数据表明严格为低标号汽油而设计的引擎用高标号油会运转得更好寿命更长。 - The impermeability experiment under the conditions of high hydraulic pressure in long time shows that the impermeability grade of acic is further beyond p40 and that the steel slag series of acic is better than the fly ash ones
高水压渗透实验表明中低标号钢渣防渗抗裂混凝土抗渗标号高于p40 ，优于同掺量粉煤灰混凝土，满足深水条件下混凝土的抗渗要求。 - Though the application of the middle or low - strength mass concrete has been used widely in the crossing river tunnel and the anchor of bridge , there have been very serious phenomena of buildings cracking and leakage in many old concrete constructions and even recent concrete constructions . so , it is very important to enhance the quality of concrete anti - cracking and impermeable property
目前中低标号大体积混凝土被广泛应用于实际工程(过江隧道预制沉管、悬索桥锚锭)中，但其突出的渗裂问题至今仍未彻底解决，因此提高混凝土防渗抗裂功能，意义十分重大。