[email protected]
  1. Find Us

    Zhengzhou, China

  2. Opeining Time

    7 * 24 hours for you

  1. Home
  2. >> Mining And Underground Surveying Global Coal Index
Mining And Underground Surveying Global Coal Index

Mining And Underground Surveying Global Coal Index

2 landscape indices of cultivated land and waterlogged subsidence zones were highly correlated with annual coal production and the correlation coefficients were 0634 0748 and 0991 respectively 3 the abrupt changes of largest patch index lpi and aggregation index ai of cultivated land occurred in 1999 and 2001 respectively.

  • 60S Manual Response
  • 30Min Technical Response
  • 24Hour Free Program

If you want to learn about our products , please call or write mail consultation.

mail advisory Offer

7*24 hours

Get Quotes