exploration phase meaning in Chinese

勘察阶段
勘探阶段

Under the terms of the contract , bg group will be the operator and will retain a 100 per cent interest during the exploration phase
合同中规定：勘探期间，英国石油天然气集团公司全权负责勘探并拥有100的权益。
The professional once divided into the online publishing speech three times , 2000 to 2003 was the sensation time , 2004 to 2005 was initiative exploration phase , in 2006 later for will exert oneself the period of expansion
业内人士曾经把网络出版划分为三个时期, 2000年到2003年为感知期, 2004年到2005年为主动探索期, 2006年以后为着力发展期。