The purpose of the free board is to allow the solids to separate from the gas stream . 自由空域的目的是要使固体从气流中分离出来。
2.
Certificate of free board 干舷证书
3.
Summer free board 夏季干舷
4.
Free board deck 干舷甲板
5.
Free board mark 干舷标志
6.
He then came back to china to build the school and his 17 ( now 40 ) canadian teachers are all paid by the canadian rate plus free boarding and round - trip air tickets for the teachers ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ' ’ immediate family members ( while 99 % foreign english teachers in china are paid few thousand rmb per month ) 他的17名(现在40名)加拿大籍教师的薪水都是按加拿大的教师待遇标准支付的，外加免费食宿和回国探亲的往返机票费(可是， 99 %的中国外籍英语教师的工资每月不过几千人民币) 。
