- paddle pump
- 漿式泵
English-Chinese dictionary. 2013.
English-Chinese dictionary. 2013.
Windpump — An Aermotor Windmill Company water pumping windmill in Texas near Denton. A windpump is a windmill used for pumping water, either as a source of fresh water from wells, or for draining low lying areas of land. Once a common fixture on farms in… … Wikipedia
Playboating — is a discipline of whitewater kayaking or canoeing where the paddler performs various technical moves in one place (a playspot), as opposed to downriver whitewater canoeing or kayaking where the objective is to travel the length of a section of… … Wikipedia
Technology of the Song Dynasty — The Song Dynasty ( zh. 宋朝; 960–1279 CE) provided some of the most significant technological advances in Chinese history, many of which came from talented statesmen drafted by the government through imperial examinations.The ingenuity of advanced… … Wikipedia
Hydraulic analogy — The electronic–hydraulic analogy (derisively referred to as the drain pipe theory by Oliver Heaviside) is the most widely used analogy for electron fluid in a metal conductor. Since electric current is invisible and the processes at play in… … Wikipedia
Lock (water transport) — Canal lock and lock keeper s cottage on the Aylesbury Arm of the Grand Union Canal at Marsworth in Hertfordshire, England … Wikipedia
energy conversion — ▪ technology Introduction the transformation of energy from forms provided by nature to forms that can be used by humans. Over the centuries a wide array of devices and systems has been developed for this purpose. Some of these energy … Universalium
List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have … Wikipedia
Level sensor — Level sensors are used to detect liquid level. The liquid to be measured can be inside a container or can be in its natural form (e.g. a river or a lake). The level measurement can be either continuous or point values. Continuous level sensors… … Wikipedia
Crankshaft — For other uses, see Crankshaft (disambiguation). Crankshaft (red), pistons (gray) in their cylinders (blue), and flywheel (black) The crankshaft, sometimes casually abbreviated to crank, is the part of an engine which translates reciprocating… … Wikipedia
Surfing — This article is about stand up ocean surfing. For other uses, see Surfing (disambiguation). A surfer performing a late drop … Wikipedia
Crank (mechanism) — A crank is an arm attached at right angles to a rotating shaft by which reciprocating motion is imparted to or received from the shaft. It is used to change circular into reciprocating motion, or reciprocating into circular motion. The arm may be … Wikipedia