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Anchor text: Fiberoptic power budget calculator

Wikipedia: Optical power budget

Wikipedia: Fall factor

Anchor text: Japanese Measurement to Metric and Imperial Converter for Length/Distance, Area, Volume, Mass/Weight, and Rice Weights

Wikipedia: Japanese units of measurement

Anchor text: A computationally functional Alveolar Gas Equation by vCalc.

Wikipedia: Alveolar gas equation

Anchor text: Calculator for computing Halstead metrics

Wikipedia: Halstead complexity measures