試し験けん段だん階かい

noun

testing stage; test phase

Refers to a phase in development or evaluation where something is being tested, such as a product, system, or process.

• 新しん製せい品ひんはまだ試し験けん段だん階かいです。

  The new product is still in the testing stage.

• 試し験けん段だん階かいで多おおくの問もん題だいが見みつかった。

  Many problems were found during the test phase.