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| Subject | English | Russian |
| el., Makarov. | base fitting of a support insulator flange | фланец опорного изолятора |
| polit. | base of support | опора (ART Vancouver) |
| construct. | loss of base support | кальмотат (when a foundation pile (свая) loses base support, e.g. due to underground waters (but may still be held by friction against the pile body) Ivan Gesse) |