difficult to weld中文什么意思

例句与用法

1. Brazing is a metal joining technique that exhibits its full potential when joining materials that are difficult to weld conventionally , such as different materials , steel alloys , or parts with thin structures , complex shapes , etc
   可焊接其他焊接方法难以焊接的材料，异种材料和合金钢，薄壁构造或者形状复杂的部件加工，这种强有效的金属焊接技术就是铜焊接。
2. It is a dozen metals in one ; now almost diamond - hard - - and again almost as soft as copper ; here brittle as glass ? there malleable1o as silver ; now welding quite readily - - again , very difficult to weld ; melting rather easily - - at other times difficult to diffuse ; usually very magnetic - - and : again almost non - magnetic ; an excellent conductor of heat and electricity - - and at times stubbornly resistant to both
   铁将十多种金属特性合而为一：时而几乎坚硬如金刚石，时而又柔软如铜；此处易碎如玻璃，彼处又可展延如银；时而很容易焊接，时而又很难焊合；有时相当易熔，有时又极难扩散；通常情况下富有磁性，但有时又几乎磁性全无；本是热和电的优良导体，但有时却顽强地抗拒二者。