rate of trailer provision [交] 挂车配比
The past two decades have witnessed relentless declines in the Japanese birth rate, prompting a range of demographic concerns, from a lack of elderly care provision to long-term fiscal catastrophe.
过去的二十年里,日本的婴儿出生率持续下降,这引发了从老年人无保障条款到长期财政赤字一系列的人口统计学问题。
The testing method of acquiring the data guide lines is based on provision of GB8076-1997 including bleeding rate, slump, concreting time. ratio of compressive strength. shrinkage rate and so on.
获得数据指标的试验方法是根据GB8076 - 1997规定试验方法,包括:泌水率、坍落度、凝结时间差、抗压强度比、收缩率等。
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