Process flow diagram - Typical oil refinery. This is a schematic process flow diagram of the processes used in a typical oil refinery. This process flow diagram (PFD) example was redesigned from the Wikimedia Commons file: RefineryFlow.png. [commons.wikimedia.org/wiki/File:RefineryFlow.png] This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Each gym also provides its members with access to state-of-the-art equipment. While members need to be 18 years old to sign up individually, those who are at least 14 can sign up with a parent or legal guardian.
Answer Wiki. Olympic weightlifters are recruited as young as 9 to 10 years old to begin their training. However, they're not loaded down with heavy weights for several years. It's all about technique, technique, technique. That way when they start to increase the weight a couple years down the road, the form is already second nature to them.