Закончите предложения, используя слова, данные справа:
1. the intense heat is … by the arc.
2. the electric arc is the best … of
the heat energy.
3. the arc is able to melt … metals.
4. sometimes the arc is … between the two non-consumable electrodes.
5. there are two types of current … and …
6. the depth of fusion is named … .
7. the electrode … is used for holding an electrode.
8. when the electrode is in contact with the work, the … is completed.
9. the electric current and polarity, both … and … are an important factor in producing high quality welds.
10. the ... cables connect the … metal with a … of energy.
11. the … electrode is a conductor and at the same time a … metal.
12. intense heating … in melting the base metal and the electrode. Penetration
Circuit
Ground
To be created
Filler
To result (in)
Alternating
Source
To be produced
Reverse
Holder
Straight
Direct
Base
Refractory
Consumable
Quality
Property

1) is produced2) source3) base4) is created5) direct and alternating6) penetration7) holder8) circuit9)  straight and reverse10) ? (не знаю, что может подойти), refractory, source11) consumable , filler12) results in