| virgin rock mass(expression, feature, environment, engineering) |
| virgin rock temperature(expression, feature, environment, engineering) |
| virgin sand(expression, nature, feature, oil) |
| virgin seam(expression, feature, environment, engineering) |
| virgin system(expression, feature, environment, engineering) |
| wise and foolish virgin(expression, religion, feature, devotion, faith) |
| virgin-rock temperature(expression, feature, environment, engineering) |
| virgin alloy(expression, feature, environment, engineering) |
| virgin aluminum(expression, feature, environment, engineering) |
| virgin crystal(expression, feature, environment, engineering) |
| virgin dip(expression, feature, environment, engineering) |
| virgin fibers(expression, feature, environment, engineering) |
| virgin forest(expression, feature, environment, engineering) |
| virgin ground(expression, nature, feature, geology) |
| virgin lands(expression, feature, environment, engineering) |
| virgin neutron(expression, feature, environment, engineering) |
| virgin noise(expression, feature, environment, engineering) |