试验性的

This trip will be only experimental.

这次旅行只是试。

A petty pharmaceutic firm conducted a pilot scheme among pilgrims with piercing eyes.

一个小制药公司在那些观察力敏锐朝圣者当中进行了一个试计。

This machine was introduced experimentally in 1960.

这台机器是在1960年被试地引进。