The whale expelled water from his blowhole.鲸鱼从鼻孔排出水.The actual facts showed that they are effective in blowhole formed.实践表明,该焊接气孔防止措施应用效果良好,能够提高焊接质量.Black - ink - filled the size of the havoc in blowhole and changed the ...
Calmon has quoted ion exchange costs of $ 0.12 - 0 . 30 / 1000 gal for boron treatment.卡尔蒙提出的离子交换树脂处理硼的费用为0.12 ― 0.30美元/千加仑.B from the family of boron have autocatalytic effect.硼族元素对焦炭反应性起负催化作用.Boron - substituted polyar...
Larger drawings tend to require two or three exposures to cover them.较大的图画往往需要两三张胶片才能拍下来。How many exposures have you made?你拍过几张底片了?Exposures of rhythmically banded protore are common in the workings.在工作面中常见有韵律条带“原矿石”....
I was working all hours and constantly fretting about everyone else's problems.我一刻不闲地工作，总是为别人的事操心。Fretting about it won't help.苦恼于事无补。The old lady is always fretting over something unimportant.那位老妇人总是为一些小事焦虑不安....