prism ballast

См. также в других словарях:

• призменный балласт (контактной линзы) — Балласт, достигаемый введением в определенное положение призмы или взаимным смещением осей передней и задней поверхностей. [ГОСТ 28956 91] Тематики оптика очковая и офтальмологическая Обобщающие термины линзы контактные EN prism ballast FR prisme …   Справочник технического переводчика

• S. A. Andrée's Arctic balloon expedition of 1897 — was an ill fated effort to reach the North Pole in which all three expedition members perished. S. A. Andrée (1854 ndash;97), [Andrée, christened Salomon August, invariably went by his initials as an adult.] the first Swedish balloonist, proposed …   Wikipedia

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