Mix proportion by weight 重量配合比
The strength of the cement is low, the stability of volume is unqualified, primarily is to go together with raw materials mix proportion by weight what caused by inappropriate reasons .
水泥的强度低， 安定性不合格，主要是配料不当的原因造成的。
A cup of filter coffee contains about three times as much caffeine as a cup of tea, although dry tea leaves do contain a higher proportion of caffeine by weight than coffee beans.
一杯过滤咖啡含有的咖啡因大约是一杯茶的3倍，尽管从重量上看，干茶叶所含咖啡因的比例确实比咖啡豆高。
To do this, we weight the hourly wage for each grade by its proportion of the total labor required to produce the product.
为此，把每一等级的小时工资，以生产这种产品所消耗的该等级劳动量占总劳动量的比重为权数，进引加权。
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