| conical |
Combination of all dials in the form of a cone, either partial or full. The so-called goblet or chalice dials are conical dials. They tell time by recording the altitude of the sun, and they are easily distinguished. A vertical pin in the center , or the edge of the rim, may be used to cast the shadow.
출처: www.math.sfu.ca/histmath/Special/dictionary%20of%2...
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| conical |
a washer with a conical, or cone shape.
출처: www.bergen.org/AAST/Projects/Engineering_Graphics/...
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| conical |
Sloping sides.
출처: www.thedrummerslounge.com/Encyclopedia_Membranopho...
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