A laser beam is aimed at the surface of a window or other plane surface that is affected by sound.
12.
Three field lines through a plane surface, one normal to the surface, one parallel, and one intermediate . "'Bottom : "'
13.
In a helical gear, however, a plane can be normal to only one tooth at a point lying in the plane surface.
14.
The Ni ( 110 ) crystal plane surface has the lowest activation energy to break the hydrogen molecule at 36 kJ / mol.
15.
To speed up the printing process, he introduced a movable undertable with a plane surface on which the sheets could be swiftly changed.
16.
The Strob inserts or rakers, have cutting edges which extend outside the two plane surfaces of the blade, but fractionally less than the kerf.
17.
In order to form an image, the ground plane surface must generally have dimensions of at least a quarter-wavelength of the radio waves used.
18.
After repeating this process, comparing and scraping the three plates together, they would automatically generate exact true plane surfaces accurate to within millionths of an inch.
19.
Therefore, the flat surfaces tend to grow larger and smoother, until the whole crystal surface consists of these plane surfaces . ( See diagram on right .)
20.
According to the initial assumption we can write \ x _ { 32 } = x _ { 31 } = 0 for the plane surface mapping.
