In the past twenty years, more and more studies have been carried out on the use of abundant plant resources in nature.
近二十年来，对自然界丰富的植物资源加以充分开发利用的研究日益受到重视。
Widely cultivated american monocarp ic plant with greenish-white flowers on a tall stalk; blooms only after ten to twenty years and then dies.
美洲的一种被广泛种植的、结一次果的植物，高茎上长着稍带绿色的白花；仅仅在十年或二十年后开花，之后死去。
Widely cultivated American monocarpic plant with greenish-white flowers on a tall stalk; blooms only after ten to twenty years and then dies.
美洲的一种被广泛种植的、结一次果的植物，高茎上长着稍带绿色的白花；仅仅在十年或二十年后开花，之后死去。
The paper has summarized the articles in the last twenty years on plant tissue culture of sugarcane.
本文综述了二十多年来国内外有关甘蔗组织培养的文献。
The large domestic Wastewater Treatment Plant (WWTP) has been around just for more than twenty years.
国内的大型城市污水处理厂起步较晚，仅有二十几年的历史。
My plant is the production of anti-corrosion pipe valves of the professional manufacturers, so far has more than twenty years of history, technology-based factory insist.
我厂是生产防腐管阀件的专业厂家，至今以有二十余年历史，本厂坚持以科技为本。
The isolation, culture and fusion technology of plant protoplast have been developing rapidly over the past twenty years.
对原生质体的分离、培养、融合及植株再生方面进行了简要的论述。
There was a man who had worked at a factory for twenty years. Every night when he left the plant, he would push a wheelbarrow full of straw to the guard at the gate.
他们做了好多年的朋友，警卫问他说，“查理，我看见你每天晚上从这里出去，有二十年了，我知道你一直在偷东西，现在你也退休了，告诉我吧，你到底偷了什么，我快被这件事搞疯了。”
There was a man who had worked at a factory for twenty years. Every night when he left the plant, he would push a wheelbarrow full of straw to the guard at the gate.
他们做了好多年的朋友，警卫问他说，“查理，我看见你每天晚上从这里出去，有二十年了，我知道你一直在偷东西，现在你也退休了，告诉我吧，你到底偷了什么，我快被这件事搞疯了。”
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