10 gyvenimą lengvinančių daiktų iš Kinijos: pigūs grąžtų ribotuvai, į gėrimo temperatūrą reaguojantis puodelis, tinginiams skirtas telefono laikiklis ir net balsu valdomas dulkių siurblys (Video)

lyg ir nusotabi skalbyklė. Turbūt skalbia po kojinę per kartą? "In general, smaller parts, requiring more critical cleaning, require higher watts per gallon to achieve the desired level of cleanliness. Most industrial ultrasonic cleaning systems use watt density from 50 - 100 watts per gallon. However, there is what is known as "the large tank phenomenon". There is an inverse relationship between liquid volume and the power density required to reach cavitation levels in that liquid. Generally, tanks 6-30 gallons might require 60-85 watts per gallon while tanks 50-100 gallons require only about 25-35 watts per gallon. A 2000 gallon tank may require only 10 watts per gallon."

anokia cia naujiena, kad bando prakisti slamsta, tam gearbest dauk prekiu su klaidinanciais aprasymais