By the way, before leaving this subject, I would like to add a few comments.
在结束这个问题之前顺便一提,我希望能再提出一些看法。
Yet a great many processes depending on such research are sought for with complete secrecy until the stage at which patents can be taken out.
然而,依赖这种研究的很多工艺程序是在完全保密的情况下进行的,直到可以取得专利权的阶段为止。