钻井

Traditional form:

鑽井

Pinyin (reading):

zuānjǐng

Definitions:

• to drill (e.g. for oil)
• a borehole

Characters:

• 钻 - diamond; to bore, to drill, to pierce
• 井 - well, mine shaft, pit

Traditional characters:

• 鑽 - diamond; to bore, to drill, to pierce
• 井 - well, mine shaft, pit