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单词 isograd
释义

isograd /ˌaisəu'ɡreid/

英汉-汉英词典
等变线
词组 | 习惯用语
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  • radiogram n. 无线电报;射线照相;收音电唱两用机
  • Isadora n. 伊莎多拉(女子名)
  • Iscariot n. [圣经]背信者,叛徒;出卖耶稣的犹太之姓
  • Asgard n. 仙宫(北欧神话中的建筑)
isograd n. 等变质线;[地质] 等变线;等变度;等量线
isograd rocks 等级岩

网络短语:
biotite isograd 黑云母等变度
biotite e isograd 黑云母等变度
英语百科

Isograd

In geology, an isograd is a plane of constant metamorphic grade in the field; it separates metamorphic zones of different metamorphic index minerals. On geologic maps focusing on metamorphic terranes (or landscapes underlain by metamorphic rocks), the boundaries between rocks of different metamorphic grade are commonly demarcated by isograd lines. The garnet isograd, for example, would mark the first occurrence of garnet in the rocks.

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