grab sampling उदाहरण वाक्य

However, where changing conditions are an issue such as near river or sewage discharges, close to the effects of volcanism or close to areas of freshwater input from melting ice, a grab sample can only give a very partial answer when taken on its own.
Venus has over 9 / 10ths Earth gravity, and a thick atmosphere to blast through, but no human would want to land there, so it's not an issue, unless we want a robotic probe to grab samples and return with them . talk ) 07 : 47, 6 December 2012 ( UTC)