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避孕環
bì yùn huán
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coil;
contraceptive coil;
intrauterine device
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郎肯循環
láng kěn xún huán
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Rankine cycle (engineering)
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釦環
kòu huán
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ring fastener;
buckle;
retainer strap
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鉤環
gòu huán
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shackle (U-shaped link)
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銅環
tóng huán
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brass ring;
door knocker
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鏈環
liàn huán
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chain link
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鐵環
tiě huán
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an iron ring
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門環
mén huán
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door knocker (in the shape of a ring)
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開發環境
kāi fā huán jìng
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development environment (computer)
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險象環生
xiǎn xiàng huán shēng
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dangers spring up all around (idiom); surrounded by perils
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雛菊花環
chú jú huā huán
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daisy chain;
chain sinnet
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雜環
zá huán
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heterocyclic (chemistry)
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電子環保亭
diàn zǐ huán bǎo tíng
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"electrical junk center", site for re-processing of old electrical and electronic equipment
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生態環境
shēng tài huán jìng
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ecological environment; ecosystem
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