炉门冒火，应立即打开高压氨水，待熄火后再切回低压氨水就行。
「花婿講座」の読み方は（）である。 ["はなよめこうざ","はなむここうざ","はなよめごうざ","はなむこごうざ"]
焦炭质量的好坏与本岗位没任何关系。
焦炭在高炉内起供热、骨架、供铁与渗碳等作用。
The Certificate of pratique shall only have effect in （）. ["all ports of the issuing country","all ports of the world","all ports other than a issuing country","all ports of ship's arriva"]
河口拦门沙的发育与泥沙来源及径流、潮流作用有何关系？
