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1·Plants have at least two names - a genus name, which is general and capitalised, and a lower-case species name that is more specific, for example, the Jerusalem artichoke is Helianthus tuberosus.

植物至少有两个学名———一个属名，是总称，用大写，另一个是小写字母的种名，更加专属，比如，洋姜jerusalem artichoke就是向日葵属菊芋helianthus tuberosus。

2·The irrigation with seawater had n ' t affected the inulin contents hi helianthus tuberosus ( l. ) tubers, and the contents of inulin in helianthus tuberosus ( l. ) were from about 40 % to 65 %

利用海水资源对菊芋进行灌溉不影响其块茎中菊糖的含量，菊芋块茎中菊糖含量范围为40到65左右。