What unit has an Avoirdupois value of 57.602 gr.?
CREATE TABLE "apothecaries_system" (
  "unit" text,
  "russian" text,
  "translation" text,
  "ratio" real,
  "metric_value" text,
  "avoirdupois_value" text,
  "ordinary_value" text
);
SELECT "unit" FROM "apothecaries_system" WHERE "avoirdupois_value"='57.602 gr.';