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food chain of aquatic ecosystem
释义
food chain of aquatic ecosystem
Encyclopedia
农学
食物链
释
food chain of aquatic ecosystem
水生生态系统食物链
在水生生态系统中,从植物、细菌和有机物开始,物质和能量通过摄食与被摄食在各营养级的水生生物间依次传递所形成的链状营养关系。当能量在食物链传递时,每经过一个营养级就有一部分能量会损失掉。因此,食物链不可能无限加长,水生生态系统食物链的营养级通常只有4~5级。
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self focusing optical fiber
self-focusing optical fiber
self-fruitful
self-fulfilling expectations
self-fulfilling prophecy
self-generating
self-governance of community residents
self-governing of the society
self-gravitating body
self-gravitation
self-group relations
self-harm behavior
self-healing cement
self healing control for distribution network
self-healing materials
Self-healing polymers
self-healingpolymers
self-healing system
self-help
self-help groups
self-homeomorphism
self-homing
self-homologous point
self-homotopy
self-identity
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