的确，锡已经取代了在焊接时会产生大量有害物质的铅的王者之位。 由于锡毒性较弱，它已在许多焊接过程中取代了铅。
Tin has replaced lead, which is more toxic, in a lot of soldering.
计算断裂失稳性时，必须考虑焊接或轧制残余应力，恒载应力和活载应力之总和。
To evaluate fracture instability, the total sum of stresses due to residual welding or rolling stresses, dead load, and live loads must be considered.
第五、在地面用膨胀螺栓固定后焊接钢筋做假山的龙骨，然后把钢丝网绑上，再抹灰，然后待其百分之60干度时根据造型刮好。
The fifth, on the ground with expansion bolts fixed welded steel rockeries and keel, then the tie wire, plaster, and the percent of 60 stem degrees according to shape a good scratch.
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