Site Fotolia
01-04 Industrie am Hafen- © Marco2811
01-04 Hafen am Abend - © Marco2811
01-05 Zeitschriftenstapel, close-up - © Joachim Wendler
02-05 Green String Beans - © Robert Keenan - Fotolia.com
03-01 aircraft de-icing © Elite-Photography
03-02 Kohlekraftwerk - © Klaus Eppele
03-03 Fräskopf einer CNC Fräsmaschine in Metallindustrie - © Gina Sanders
03-06 Two sphere gas storages in petrochemical plant - © mmmx
03-07 ship and sunset in the ocean - © dell
04-04 Loading freigth in airplane - © Pierre-Yves Babelon
 
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00, 01-03  sailing regatta - © gaspr13
03-04 biogas plant - © LianeM
 
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