preliminary investigation的用法和樣例：
例句
- Two geologists will make a preliminary investigation.
有兩位地質(zhì)學(xué)家將做一次初步調查。 - We've reported some of the preliminary findings in the study.
我們已經(jīng)把一些初步調查結果寫(xiě)進(jìn)調研報告了。 - Preliminary study on moisture metabolism of Silphium perfoliatum L.
串葉松香草水分代謝初步研究。 - A Preliminary Study on Callus Inducement from the Anther of Jartopha curcas L.
麻瘋樹(shù)花藥愈傷組織誘導的初步研究。
