%0 Dataset
%T Patents on design and development of key equipment and tools for polar drilling
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/3946a3c1-059e-40d8-88f0-70ab8543084f
%W NCDC
%R 10.12072/ncdc.SRIPE.db1695.2022
%A chi shenggao
%K Screw drill;anti drop;PDC bit;diamond composite;rubber formula
%X Five patents were applied in Wuhan, Hubei Province from 2017 to 2020, including screw drill anti dropping technology, PDC bit, diamond composite, rubber formula, etc.