Line level is the specified strength of an audio signal used to transmit analog sound between audio components such as CD and DVD players, television sets...

laser line level is a tool combining a spirit level and/or plumb bob with a laser to display an accurately horizontal or vertical illuminated line on a...

spirit levels for different uses: Carpenter's level (either wood, aluminium or composite materials) Mason's level Torpedo level Post level Line level Engineer's...

and used as a vertical direction as a reference line, or plumb-line. It is a precursor to the spirit level and used to establish a vertical datum. It is...

The A-level (Advanced Level) is a subject-based qualification conferred as part of the General Certificate of Education, as well as a school leaving qualification...

mean sea level is called levelling. Optical levelling, also known as spirit levelling and differential levelling, employs an optical level, which consists...

concept of a laser level has been around since at least the early 1970s, the original spinning-mirror design laser plane and line level was patented by the...

Look up Line, line, or líne in Wiktionary, the free dictionary. Line most often refers to: Line (geometry), object that has zero thickness and curvature...

independent variables is two, a level set is called a level curve, also known as contour line or isoline; so a level curve is the set of all real-valued...

bubble level are used to achieve the necessary accuracy. Traditionally the instrument was completely adjusted manually to ensure a level line of sight...