http://grumblerr.livejournal.com/ ([identity profile] grumblerr.livejournal.com) wrote in [personal profile] zhab 2012-06-22 04:59 pm (UTC)

Есть академический вопрос по проблеме эксплуатационного износа пятиугольного штыка лопаты в песчаных и чернозёмных грунтах. Я по адресу обращаюсь?
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