他正在学习如何焊接金属。

He is learning how to weld metal.

锡匠教我如何焊接金属。

The tinman showed me how to solder metal.

使用乙炔焊接金属。

Use acetylene for welding metals together.

激光器发生的光束可以焊接金属.

A beam of light produced by a laser can weld metals.

有时所有这些问题都遗留在铸件焊接金属框架里.

Sometimes all that is left is a skeleton casting with weld metal.

焊接专业的学生使用自己所学的技术技能制造和焊接金属部件。

Welding programs produce students who can use technical comprehension and ability to fabricate and weld metal components together.

此试件应使用与原始试验相同的焊接参数进行焊接，并且仅对焊接金属冲击试样进行试验。

This test piece shall be welded using the identical welding parameters as the original test and only weld metal impact test specimens shall be tested.

在焊接金属时所产生的烟雾中，常常包含了少量的锰。

The fumes produced by welding metal often contain small amounts of manganese.

乙炔的混合物，用于为切削或焊接金属提供高温环境。

A colorless, highly flammable or explosive gas, C2H2, used for metal welding and cutting and as an illuminant.

本文主要讨论应用于机械密封装置中的焊接金属波纹管力学性能的计算.

The article discusses the calculation of mechanical properties of welded metal - bellows applied in mechanical seal devices.