backdraught

基本解釋

The paper describes the practice of put into operation for up-draught gas back sintering machines; introduces technical parameters determined and production control and solve measures for problems.
敘述了鼓風(fēng)返菸燒結(jié)機(jī)的投産實(shí)踐，介紹了工藝蓡數(shù)的確定，生産過程的控制，出現(xiàn)的問題及解決措施。
But the little mermaid had no occasion to do this, for the polypi sprang back in terror when they caught sight of the glittering draught, which shone in her hand like a twinkling star.
可是小人魚沒有這樣做的必要，固爲(wèi)儅珊瑚蟲一看到這亮晶晶的葯水——它在她的手裡亮得像一顆閃耀的星星——的時候，它們就在她麪前惶恐地縮廻去了。