http://gns-ua.livejournal.com/ ([identity profile] gns-ua.livejournal.com) wrote in [personal profile] gns_ua 2010-11-16 09:21 am (UTC)

Если 70, то от трубы остаётся <3.5м. Точно растяжка нужна? А если тяжёлый бетон класть, и скажем 50x50x70?

эх, вот не прогуливал бы физику и сопромат - умел бы посчитать.
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