Breather valve and flame arrestor are indispensable safety devices.可见呼吸阀、阻火器是储罐不要缺少的安全设施.So the railroad will buy the spark arrestor.所以铁路将购买阻火器.The railroad will realize that it can save this $ 100 cost by investing $ 50...
It transpired that Paolo had left his driving licence at home.后来才知道保罗把驾照忘在家里了。This licence would not allow him to trade as a plc.这个许可证并不能让他以公开股份有限公司的名义从事贸易。The painting was returned to Spain on a temporary import licence...