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ratch

n. 制轮装置;[防倒转的] 棘齿

制轮装置;[防倒转的] 棘齿

WordNet (r) 3.0 (2006) (WordNet)

ratch
n 1: mechanical device consisting of a toothed wheel or rack
engaged with a pawl that permits it to move in only one
direction [synonym: {ratchet}, {rachet}, {ratch}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Ratch \Ratch\ (r[a^]ch), n. (Zool.)
Same as {Rotche}.
[1913 Webster]

Ratch \Ratch\ (r[a^]ch), n. [See {Rack} the instrument,
{Ratchet}.]
A ratchet wheel, or notched bar, with which a pawl or click
works.
[1913 Webster]

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英文字典中文字典相关资料:

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The number 3 is a very mystical and spiritual number featured in many folktales (three wishes, three guesses, three little pigs, three bears, three billy goats gruff)
3 - Wiktionary, the free dictionary
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Three is an important number for many cultures (groups of people living together) It is also a prime number It is the first odd prime In Roman numerals, it is III three gifts of the wise men (Magi) who visited Christ at his birth in the Gospel of Matthew
What Does lt;3 Mean? Social Media Texting Uses - wikiHow
In this guide, we’ll tell you everything there is to know about the <3 (heart) emoticon, from what it means to how you can use it What does the <3 (heart) emoticon mean? The <3 emoticon means love on social media This cute symbol is most commonly used to discuss romantic relationships, friendships, or passions when texting, tweeting, or posting
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The meaning of THREE is a number that is one more than 2 How to use three in a sentence

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