In a relatively brief period the archaeological record is reduced to mere scraps of stone, bone, glass, metal, and earthenware.
在短时期内，能留下考古记录的东西也都会退化为石头、骨头、玻璃、金属和陶器的碎片。
This stone cage net weight will gradually increase, at the same time has yet to fill the space will be reduced.
这样做石笼网的重量将逐渐增加，同时尚未填补的空间将会减少。
Scientists found that volunteers who ate the Stone Age fare for just three weeks had lowered blood pressure and a reduced risk of clots.
科学家发现那些吃了三个星期穴居人时代的食物的自愿者的血压降低了，减少了血栓的风险。
Deep hole millisecond compression blasting was applied to stone quarrying, resulting in reduced harmful blasting vibration, anticipated blasting fragment size and ideal blasting effect.
在石料开采工程中，应用深孔毫秒延时挤压爆破技术，减少爆破震动危害，石料块度比较理想，取得良好的爆破效果。
When the stone waste powder content raise from 10% to 20%, the workability of the concrete was improved, the early strength of concrete was gradually increased and the later strength was reduced.
当废石粉掺量由10%增加至20%时，混凝土的工作性能均会得到提高，同时混凝土的早期强度也逐渐升高，但混凝土后期强度却会降低。
The experimental results showed that coke reactivity is increased with lime stone addition and reduced with pitch addition, but the coke strength after reaction is increased.
实验结果表明，加入石灰石后焦炭的反应性显著升高，加入沥青后焦炭的反应性降低，反应后强度提高。
Using the stone waste powder as a cement mixing materials, the early strength of cement was improved, but late strength of cement was reduced.
用废石粉作为水泥混合材时，有利于提高水泥的早期强度，但会使水泥后期强度有所降低。
The increment of stone dust from 4.3 to 20% did not adversely affect the strength, and the abrasion loss of concretes was reduced.
随着机制砂中石粉含量从4.3%增加到20%，对混凝土强度无不利影响，磨损量逐步减小；
The increment of stone dust from 4.3 to 20% did not adversely affect the strength, and the abrasion loss of concretes was reduced.
随着机制砂中石粉含量从4.3%增加到20%，对混凝土强度无不利影响，磨损量逐步减小；
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