1. During Tertiary period, the secondary enrichment happened to the gold in weathering crust of planation surface. 在第三纪,夷平面上的风化壳中的金经历了重要的次生富集作用;
2. These strata have recorded the results of multiple deformation and low-grade metamorphism (that took place) during the Tertiary (Neogene) Penglai Orogeny. 这些地层中记录著新第三纪蓬莱造山运动的多次变形与低度变质的结果。
3. With excellent geographical location and convenient transportation, township enterprises, the tertiary industry by leaps and bounds, initial results plot development. 凭借优越的地理位置、便利的交通、乡镇企业、第三产业突飞猛进,小区开发初见成效。
英英解释
n.
1. from 63 million to 2 million years ago
2. coming next after the second and just before the fourth in position