trial test

• 初步试验,预试验,试探性试验,探索性试验

trial test的用法和样例：

例句

1. The retanning and fatliquoring technology of the inferior wet blue cattlehide had been studied by way of the orthogonal test.
   本文通过探索性试验及正交试验研究了采用质次黄牛蓝湿皮生产鞋面革的复鞣加油技术。