ageing boundary中文什么意思

• 老化界限

• ageing:    n. 1.变陈；成熟；【化学】老化。 2.【冶金】时效。 ...
• boundary:    n. 边界，疆界，限界 (between);(球场)边线 ...
• ageing:    n. 1.变陈；成熟；【化学】老化。 2.【冶金】时效。
• boundary:    n. 边界，疆界，限界 (between);(球场)边线；界标；界限，范围，分野。 aboundary dispute 边界纠纷。 the boundary between Canada and the United States 美加国界。 boundaries on all sides 四方辐辏之所，四通八达。
• accelerated ageing:    加速成熟; 加速老化; 快速陈化; 人工老化

例句与用法

1. Abstract : based on the isotopic dating data of volcanics and recent research achievements of age boundary between jurassic and cretaceous systems , it is suggested that the volcanic series in shengyuan basin must be attributed to lower cretaceous
   文摘:本文根据盛源盆地火山岩同位素年龄数据和侏罗-白垩系界线年龄的最新研究成果，认为盛源盆地火山岩系的地层时代应属早白垩世。