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| | Reference Guide #2 - Linda Hall Library |
 | | The reference staff is called upon to answer a great variety of questions pertaining to the value of physical magnitudes, mathematical constants, and formulas relating these quantities. |
 | | Formulas of organic compounds are extremely numerous and may be very complex, involving rings, side chains, etc. The most important distinction is between those of cyclic (with rings) and acyclic (no rings) formulas. |
 | | Most of these are special cases of physics and chemistry formulas as applied in different technologies, such as 1) properties of specific materials (metals, polymers, fuels, adhesives, lubricants, etc.) and 2) relations between components of systems (of electric and electronic circuits, engines, structures, etc. |
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