Recently, the important exploration well Mashen 1 is successfully drilled with the depth of 8418 meters, which creates the first ultra-deep drillingrecord in Asia.
近日，中国石化重点探井马深1井顺利完钻，完钻井深8418米，创亚洲第一超深钻井纪录。
2
For those uninitiated in scientific ocean drilling, the previous record was a little over 4 km.
可以告诉没有海洋科学钻探知识的人，先前的纪录是四公里过一点儿。
《柯林斯英汉双解大词典》
3
There are 3 great achievements in the late period of scientific drilling: the realization of downhole real time signal record, transmission, treat and analysis;