- 流轉稅制
- circulating system: 環(huán)流系統(tǒng); 循環(huán)系統(tǒng)
- air circulating and heating system: 空氣循環(huán)和加熱系統(tǒng)
- boiler water circulating system: 鍋爐水循環(huán)系統(tǒng)
- borehole hydraulic-circulating system: 鉆孔水力循環(huán)系統(tǒng)
- caul circulating system unit: 墊板回送機
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