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2. Vietnamese units of measurement - Wikipedia

   en.wikipedia.org/wiki/Vietnamese_units_of...

   Originally, many thước of varying lengths were in use in Vietnam, each used for different purposes. According to Hoàng Phê (1988), [1] the traditional system of units had at least two thước of different lengths before 1890, [2] the thước ta (lit. "our ruler") or thước mộc ("wooden ruler"), equal to 0.425 metres (1 ft 4.7 in), and the thước đo vải ("ruler for measuring ...

3. Numeric keypad - Wikipedia

   en.wikipedia.org/wiki/Numeric_keypad

   Numeric keypads usually operate in two modes. When Num Lock is off, keys 8, 6, 2, and 4 act like arrow/navigation keys up, right, down, and left; and 7, 9, 3, and 1 act like Home, PgUp, PgDn, and End, respectively. With Num Lock on, digit keys produce the corresponding digit.

4. Keycap - Wikipedia

   en.wikipedia.org/wiki/Keycap

   [1] Double shot: The most expensive and durable process: each outer keycap has its legend physically moulded into it, and the legend is then created by injecting a different piece of plastic into the keycap from the inside. This means that there is no chance of the legend ever fading or getting removed, even as the keycap wears down.

5. Keyboard layout - Wikipedia

   en.wikipedia.org/wiki/Keyboard_layout

   A typical 105-key computer keyboard, consisting of sections with different types of keys. A computer keyboard consists of alphanumeric or character keys for typing, modifier keys for altering the functions of other keys, [1] navigation keys for moving the text cursor on the screen, function keys and system command keys—such as Esc and Break—for special actions, and often a numeric keypad ...

6. Rack unit - Wikipedia

   en.wikipedia.org/wiki/Rack_unit

   Rack with sample component sizes including an A/V half-rack unit. A rack unit (abbreviated U or RU) is a unit of measure defined as 1 + 3 ⁄ 4 inches (44.45 mm). [1] [2] It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby the height of the frame or equipment is expressed ...

7. 19-inch rack - Wikipedia

   en.wikipedia.org/wiki/19-inch_rack

   Thus, a 1U rackmount computer is not 1.750 inches (44.5 mm) tall but is 1.719 inches (43.7 mm) tall. If n is number of rack units, the ideal formula for panel height is h = 1.75n − 0.031 for calculating in inches, and h = 44.45n − 0.794 for calculating in millimeters. This gap allows a bit of room above and below an installed piece of ...

8. Postage stamps and postal history of Vietnam - Wikipedia

   en.wikipedia.org/wiki/Postage_stamps_and_postal...

   During 1945–1946, the Viet Minh government issued a large number of provisional postage stamps. These stamps were manufactured by adding an overprint to remaining stocks of the war-era stamps of French Indochina. Eventually, a set of definitive stamps depicting Ho Chi Minh were issued in 1946.

9. Ho Chi Minh City Medicine and Pharmacy University - Wikipedia

   en.wikipedia.org/wiki/Ho_Chi_Minh_City_Medicine...

   The University of Medicine and Pharmacy at Ho Chi Minh City originated as a medical school within the University of Saigon, established in 1947 during the period of French Indochina. Professor C. Massias served as the principal. [2] It was located at 28 Testard/Tran Quy Cap Street, District 3, Ho Chi Minh City (now Vo Van Tan Street).