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The diode laser as a spectroscopic tool - NIST

The diode laser as a spectroscopic tool ... near-i.r. diodes can be tuned roughly 3-4 nm from the nominal wavelength with a 20°C temperature change. ... Read more

Rev Up Your Fan Speed Control - 工控新闻 …

Rev Up Your Fan Speed Control-Abstract: Controlling the speed of a brushless DC cooling fan is discussed. Examples of discrete and IC fan speed controllers are ... ... Read more

1x7 Telephone Security Module - DOUBLE O ELECTRONICS

1x7 Telephone Security Module : Price: $ 42.50. Manufacturer: Leviton. ... 1x9 Bridged Telephone Module 1 Duplex Blue Receptacle; J-Box Surge Protective Kit ... Read more

TURNSTILES Price List Catalog

Price List Catalog www.TURNSTILES.us GATES I I AND CONTROL *NM.ruRNSTILES.us GSA • Conqqq ... Read more

Flavored Coffee Bean - How Products Are Made

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The origins of coffee, like those of so many other natural products long known to humans, are shrouded in legends. One entertaining story about the discovery of coffee involves an ancient Ethiopian ... Read more