| 单词 |
microelement |
| 释义 |
microelement|ˈmaɪkrəʊɛlɪmənt|
[f. micro- + element n.]
1. Plant Physiol. = micronutrient.
1936Chem. Abstr. XXX. 1496 Yields of oats..were greatest with the doubled concn. of nutrients with a special addn. of microelements. 1950Curtis & Clark Introd. Plant Physiol. xiii. 367 We prefer the terms trace or micro elements. 1966F. M. Irvine tr. Lundegårdh's Plant Physiol. vi. 251 Manganese takes up an intermediate position between a macro- and a microelement.
2. Electronics. A thin, flat, miniaturized circuit made with standardized length and width for assembly into a micromodule.
1959Proc. IRE XLVII. 897 (caption) Micro-module, exploded view, before stacking and interconnecting. As many micro-elements as desired may be assembled to form the module... A 0·01-inch space is allowed between micro-elements. 1963S. F. Danko et al. in E. Keonjian Microelectronics iii. 142 The 0·016-in.-diameter riser wires are soldered to appropriate metallized notches in the stack of microelements. |
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