Some of the mountains in South America have not yet been mapped out.

南美洲的一些山脉尚未在地图上标出来。

Have you put tags on your luggage?

你在自己的行李上贴上标签?

The tube leakage of partition overheater of No. 2 boiler in a power plant was studied by means of metallography, intergranular corrosion test and EDS.

要针对日照厂2(上标﹟)锅炉屏式过热器漏进行金相试、晶间腐蚀倾向性试镜能谱分析。