Changes related to "Pressure ridge (ice)"
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29 July 2015
- (diff | hist) . . Theodolite; 08:11 . . (+2) . . 188.8.131.52 (→Concept of operation)
- (diff | hist) . . Theodolite; 08:00 . . (+793) . . 184.108.40.206 (→Operation in surveying: restored description of transit theodolite as suggested in the talk page. g4oep)