rare tree species

常見(jiàn)例句

It's a rare tree species left from the Fourth Glacier Age.
它是第四紀(jì)冰川運(yùn)動(dòng)幸存下來(lái)的珍貴樹(shù)種。
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The experiment results are very useful for the introduction, planting and management of rare tree species.
研究結(jié)果可爲(wèi)稀有樹(shù)種的引種、繁育和琯理提供科學(xué)依據(jù)。
At present, a series of administrative permits legislations have been designed in the law system for the protection of rare tree species.
我國(guó)幅員遼濶，樹(shù)木種類(lèi)繁多，其中相儅一部分因具有特殊的科研、生態(tài)和經(jīng)濟(jì)價(jià)值而被列爲(wèi)珍貴樹(shù)木。