ball clicker
plural of goosery
Any of the carnivorous mammals of the genus Mustela.
A mechanism that uses ball bearings which fall into an indentation to create a clicking noise when an adjustment knob is turned to a correct position.
By means of chemosynthesis.
三脚の雲台を調整していると、各ボールベアリングが凹みに落ち込んで適正な位置でカチッと音を立てるボールベアリング式ディテント機構が噛み合うのを感じた。
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