免税舱free hatch 免税单 bill of sufferance; certificate of exemption; duty free slips; duty-free slips ..
双语例句
1
The male should be removed within two days after the fry hatch, as they may eat the young once they are free swimming.
男性应该被删除后的两天内鱼苗孵化，因为他们可以吃年轻一次，他们是自由游泳。
2
The fermentation speed of the immobilized yeast cell by hatch and continuous is 24% higher and more than 8 times than that of the free cell by batch fermentation respectively.