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30 Rock from books.google.com
Effects of chemical additives on rock and drilling properties , by additive type -- Con . ... 26 , 30 Rock hardness .. Decreased ..... 30 Rock strength .
30 Rock from books.google.com
32 30 . 40. rock rock 36 30. 24. rock roch 19. 20 . gröck 28 30rock 30 rock 25 . ... 30 . 36. rock 36 . rock 36 . rocki 42 roch39 . 39 . 32 . 24 30 .
30 Rock from books.google.com
1 640 580 591 60 640 591 599 591 607 589 S 334 602 576 646 565 568 582 567 579 652 635 581 1 639 655 586 574 621 631 580 646 605 566 579 615 S 367 30 Rock ...
30 Rock from books.google.com
5-25 20-50 : Rock , medium . 30-50 250 Ore , medium . 100 80-100 Do. 3-20 15-40 Rock . 40 80 Ore , soft - medium . 100-200 90-170 7-8 30 Rock : 80-120 ...
30 Rock from books.google.com
m2 Bottom Type Depth ( cm ) L - 1 2a 20 1,731 15 Silty - sand , gravel L - 4 2a / 17 1,285 15-30 Bedrock , cobbles L - 5A 1 11 217 15-30 Rock , cobbles ...
30 Rock from books.google.com
m2 Bottom Type No Depth ( cm ) L - 1 20 1,731 15 Silty - sand , gravel L - 4 17 1,285 15-30 Bedrock , cobbles L - 5A 1 11 217 15-30 Rock , cobbles , gravel ...
30 Rock from books.google.com
1 22 81 32 301 Precelly Top 53 I 30 49938 | Brenin Fawr 76 10 30 15469 ... 33 22 30 Precelly Top 70 30 45 58302 Precelly Top 45 8 0 67142 Nipple Rock 75 5 ...
30 Rock from books.google.com
289 John Cullen Old River Road 290 30 1 Hard Till 87 6/4/46 Domestic . Till Rock , at 0-44 44 Lin . 291 Ernest Brown Sayles Road 295 19 30 Hard Till 107 ...
30 Rock from books.google.com
... California 121 17 30 W 37 58 30 N ( change in designation of nia location ) rd ... Column 7a to read 3.0 ; Column 10 to read 30 Rock , California Change ...
30 Rock from books.google.com
... highest Foel Dregarn 103 9 point 33 22 30 Precelly Top 70 30 45 58302 Precelly Top o 67142 Nipple Rock 75 5 151 56878 Brenin Fawr 101 23 048542 Rock ...