National Geographic NG770A, Инструкция по эксплуатации

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(11) Multiplication
Example: 39 X 20
Operation: Align "39" on the outer scale with "10" on the inner
scale. Then, "20" on the inner scale corresponds to "78" on the
outer scale. Take into account the position of the decimal point
and add one zero to obtain 780. Note that with the watch scales,
the position of the decimal point cannot be obtained.
(12) Division
Example: 900/47
Operation: Align "90" on the outer scale with "47" on the inner
scale. Then, "10" on the inner scale corresponds to "19.1" on the
outer scale. Take into account the position of the decimal point to
obtain 19.1.
(10) Conversion
Example: Convert 45 statute miles into nautical miles and
kilometers.
Operation: Align "45" on the inner scale with STAT on the outer
scale. Then, NAUT on the outer scale corresponds to "39" nautical
miles on the inner scale and "KM" on the outer scale corresponds
to "72" on the inner scale.
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