名词
中文翻译：筛管
同义词：
['sieve tube', 'sieve canal', 'sieve vessel例句：1. The plant uses the ray sieve tubes to filter out unwanted particles from its sap.（植物使用筛管来过滤掉其汁液中不需要的颗粒。）']
例句：
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1. The plant uses the ray sieve tubes to filter out unwanted particles from its sap.
植物使用筛管来过滤掉其汁液中不需要的颗粒。
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2. The ray sieve tubes are responsible for transporting nutrients throughout the plant's tissues.
筛管负责将营养物质输送到植物组织的各个部位。
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3. In some species of plants, the ray sieve tubes are modified into a type of tracheid.
在某些植物种类中，筛管被改造成了一种类型的导管。