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a worker who thins out and trims trees and shrubs
a person who works at a specific occupation
a machine that trims timber
any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks
joist that receives the end of a header in floor or roof framing in order to leave an opening for a staircase or chimney etc.
beam used to support floors or roofs
capacitor having variable capacitance; used for making fine adjustments
an electrical device characterized by its capacity to store an electric charge
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