正手焊 [机] forehand welding
正面角焊缝 front fillet weld ; fillet weld in normal shear ; face-up bonding ; front fillet weld/ fillet weld in normal shear
正面角焊 [机] transverse fillet weld ; frontal fillet welding
正常焊接 normal weld
正面填角焊 front fillet weld
焊缝正面 face of weld
正侧面填角焊缝 front fillet weld
焊接纠正仪 welding rectifier
普通正常焊缝 single standard seam
焊接正三通 equal tee
近年来，一种新型高效的焊接法——A-TIG焊正引起世界范围内的高度重视。
Recently, a new type of welding method (A-TIG welding) calls a great attention all over the world.
通过焊接偏移试验、直流正接A-TIG 焊试验和FBTIG 焊试验研究了活性剂增加熔深的机理。
Some experiments, including weld deviation experiment, A-TIG welding experiment with DCSP mode and FBTIG welding experiment, are made to study the mechanism of activating flux improving penetration.
对各种正装和倒装焊功率型LED芯片的表面温度分布进行了直接测试，对其散热性能进行了分析。
The temperature distribution of power LEDs is measured, and the performance of thermal dispersion is discussed.
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