試し作さく

noun, noun or participle which takes 'suru', transitive verb

trial manufacture; prototype; test piece

Refers to making something on a trial basis, or the resulting prototype. Often used in engineering, product development, and cooking.

• 新しん製せい品ひんの試し作さくが始はじまった。

  Trial production of the new product has begun.

• 料りょう理りの試し作