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A metal trace element ( micronutrient ), essential for plant growth.是什么意思？

A metal trace element ( micronutrient ), essential for plant growth.

植物生长必需的一种微量金属元素 ( 微量营养素 ).

相关词汇
metal trace element micronutrient essential for plant growth

metal

n. 金属，金属元素，成色，金色；vt. 以金属覆盖；

trace

vt. 跟踪，追踪，追溯，探索，探索，查找；vi. 沿着一小径或道路前进，可以追溯的；n. 痕迹，踪迹，微量，极少量，[植]（脉）迹，痕迹；

element

n. [化]元素，要素，原理，[电]电阻丝；

micronutrient

n. 微量营养素；

essential

adj. 基本的，必要的，本质的；n. 必需品，基本要素，必不可少的东西；

for

prep. 为，为了，倾向于，关于，当作；conj. 因为，由于；

plant

n. 植物，草木，设备，工厂，庄

growth

n. 生长，增长，一茬植株，肿块，肿瘤；
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