焊机安放使用时应避免以下情况：
The welder should avoid being laid in the following sites when using:
1． 有较大的振动和颠簸的地方.
A vibratory or bumpy site.
2． 有铁粉和尘埃严重的地方.
A site full of ferrous powder and dust.
3． 有雨水淋袭及潮湿的地方.
A site might catch rainwater as well as a dankish site.