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This electron rain is then accelerated towards the target (a very thin glass plate acting as a semi-isolator) at ground potential (0 V), and passes through a very fine wire mesh (nearly 200 or 390 [101] wires per cm), very near (a few hundredths of a cm) and parallel to the target, acting as a screen grid at a slightly positive voltage (approx ...
T-54 fitted with stand-off armour plates fitted to hull front and wire mesh screens around the turret to provide protection against ATGM. [42] T-55L - New-build Polish versions of the T-55A. [42] T-55LD - Polish T-54 tanks rebuilt to T-55A standard. 200 T-54 tanks have been rebuilt in 1975. [42]
Over 56 acres (230,000 m 2) of steel panels are used in the floor plates, each of which contains wire and cable ducts. [50] A standard floor slab could handle loads of 50 pounds per square foot (240 kg/m 2 ). [ 51 ]
The design assumes that both breasts are equally sized and symmetrical. [86] Manufacturing a well-fitting bra is a challenge since the garment is supposed to be form-fitting but women's breasts may sag, vary in volume, width, height, shape, and position on the chest.
The hole was covered by a copper plate inscribed with the date of the Declaration of Independence (July 4, 1776), the date the cornerstone was laid (July 4, 1848), and the names of the managers of the Washington National Monument Society. The memorabilia in the zinc case included items associated with the monument, the city of Washington, the ...
A pilot's qualification badge was created in the mid-1950s, its early design consisting of a simple gold metal circle bearing a stylised Hongsa, a mythical Cambodian swan. This badge was replaced in the 1960s by a more elaborated version that featured a gilt swan inserted on a silvered wreath.
Rollins Pass is the sole, official name recognized by both the United States Geological Survey and the United States Board on Geographic Names (BGN); a decision card was issued on Wednesday, December 7, 1904. [11]