self-restraint or abstinence, especially in regard to sexual activity; temperance; moderation. 2. Physiology. the ability to voluntarily control urinary and fecal discharge. Also, continency. Origin of continence.
Topmix Permeable is a fast draining concrete pavement solution that rapidly directs stormwater off streets, parking surfaces, driveways and walkways. This minimises the cost and long-term maintenance for local authorities and developers of stormwater management.
Permeable reactive barrier. From Wikipedia, the free encyclopedia. A permeable reactive barrier (PRB), also referred to as a permeable reactive treatment zone (PRTZ), is a developing technology that has been recognized as being a cost-effective technology for in situ (at the site) groundwater remediation.