posigrade
名词 n.
形容词 adj.
英文释义
名词 n.
- A small rocket that gives additional forward thrust.
形容词 adj.
- Synonym of prograde.
词源
词源 1
From posi- + -grade (“direction”).
词源 2
From posi- + -grade (“direction”).
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数据来源: Wiktionary