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Biostratigraphic zonation and mark-fossil erection should be based on restoring evolutionary pedigrees or occurrence sequences, and the boundary should be confirmed at the horizon of their first appearance.
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生物地层学研究一定要以恢复演化谱系或发生序列为基础，界线化石标志应该选在其“首现”层位。 |
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Biosynthesis Chemical reactions in which a living cell builds up its necessary molecules from other molecules present. See anabolism.
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生物合成：所有生活细胞从其他细胞的分子中建造自己必要的分子的化学反应。 |
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Biosystematics: The area of systematics in which experimental taxonomic techniques are applied to investigate he relationships between taxa.
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生物系统学:在系统学领域内运用试验分类技术来调查分类单元之间关系的学科。 |
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Biotech can also improve farming productivity in places where food shortages are caused by crop damage attribution to pests, drought, poor soil and crop viruses, bacteria or fungi.
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生物技术还可以帮助提高因虫害、干旱、土壤贫瘠和作物病毒、细菌或真菌导致作物减产而出现食物匮乏的地区的农业生产率。 |
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Biotech firms have a strong financial incentive to target rich markets first in order to help them rapidly recoup the high costs of product development.
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强大的经济刺激促使生物技术公司把富裕国家的市场作为第一目标，以便能够尽快回收产品开发的高额成本。 |
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Biotech has its own distributionproblems.
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生物技术也面临自身的“分配”问题。 |
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Biotech is not a panacea, but it does promise to transform agriculture in many developing countries.
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生物技术虽不是万灵药，但它确实有希望改造许多发展中国家的农业。 |
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Biotechnologists have developed genetically modified rice that is fortified with beta-carotene -- which the body converts into vitamin A -- and additional iron, and they are working on other kinds of nutritionally improved crops.
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生物技术专家已经培育出了含有β—胡萝卜素(身体可将之转化为维生素A)和更多铁元素的转基因水稻，目前正在研究培育其他一些增进营养成分的农作物。 |
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Biotechnology companies spend years figuring out the right combination of mutant host organism and reactor conditions to fashion a protein therapy that is safe and effective.
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生物科技公司耗费数年时间，试著找出适当的突变宿主生物与反应环境组合，以得到安全有效的蛋白质治疗方法。 |
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Biotechnology foods were rated as the issue of least concern.
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生物技术食品被列为最少担心的产品。 |
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Biotechnology had been proven to be an effective alternative for the conventional breeding employed for Chinese date genetic improvement, creation of novel germplasm and scientific researches.
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目前，生物技术是枣传统育种的有效补充，已成为枣遗传改良、种质资源创新和科学研究的重要技术。 |
