1、The work had been only on a small scale but it suggested a solution.
這項工作只是小規(guī)模進行，但表明了一個解決辦法。

2、The work had been only on a small scale but it suggested a solution
這項工作只是小規(guī)模進行，但表明了一個解決辦法。

3、The catalyst was tested on a small scale hydrocracking apparatus.
在小型加氫裂化裝置上對催化劑反應性能進行了考察。