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木质部
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木质部
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理学
〔植物形态与结构〕
释
xylem
木质部
维管植物(蕨类植物、裸子植物和被子植物)中,主要起输导水分和无机盐等物质,并具有支持植物体作用的复合组织。常与韧皮部结合在一起构成植物体内连续的维管系统。
Biology
xylem
木质部
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ratio of centralized water supply
ratio of consumption wastes treated
ratio of division
ratio of external division
ratio of greater inequality
ratio of internal division
ratio of magnification
ratio of monofilament deviation
ratio of Output-to-input
ratio of oxygen to uranium
ratio of patient beds
ratio of progression
ratio of similitute
ratio of specific heat capacity
ratio of surface area
ratio of survival
ratio of tea polyphenols to amino acids
ratio of the circumference of a circle to its diameter
ratio of transportation accident
ratio of wool yield to liveweight
ratio of yield point to plastic viscosity
ratio paper
ratio parameter
ratio programming
ratio resistor
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