-- See Also the narrower term Blades Here are entered general works on blades, paddles or vanes which are parts of hydraulic and pneumatic mechanisms such as propellers, water-wheels, turbines, fans or compressors.Works on cutting blades are entered under the type of apparatus or the specific tool or weapon, e.g. Cutting machines; Knives; Swords.
-- See Also Plates (Engineering) Here are entered works on plates as engineering structures. Works on shells as engineering structures are entered under Shells (Engineering). Works on the mathematical theories of elasticity in plates and shells are entered under Elastic plates and shells.