welding meaning in Bangla — ঝালাই, তাপে ধাতু

Meaning

The joining of metal parts by heating them until they melt together.

The steel frame was joined by welding.ইস্পাতের কাঠামোটি ঝালাই করে জোড়া হয়েছিল।
Welding gives off a very bright light.ঝালাই থেকে খুব উজ্জ্বল আলো বের হয়।

Vocational education is training that teaches a specific practical trade — electrical work, welding, motor mechanics, tailoring, nursing — rather than an academic subject.
Vocational Education →
An arc puts out ultraviolet strong enough to burn the surface of the eye, and the burn does not hurt at the time — the pain arrives some hours later, like sand under the lids. Sunglasses do not filter it. A shaded welding mask does, and so does a screen around the work, because anyone standing nearby is exposed too.
welder — dictionary →
A wire carries current along itself. An electrode is where current leaves the metal and enters something else — a liquid, a gas, a flame, a body. The welding rod, the two plates in a battery, the pads on a hospital monitor are all electrodes.
electrode — dictionary →