原子氢焊接 atomic hydrogen welding
原子氢焊接机 atomic hydrogen welding apparatus
氢原子焊 atomic welding
原子氢焊 atomic hydrogen welding
原子氢焊电极 atomic hydrogen welding electrode
原子氢焊机 atomic hydrogen welder
把管子焊接成双接口管段的场地 doubling yard
单面焊焊接接头 single-welded joint
对接焊接接头 butt weld joints
钢制对接焊接接头 steel butt weld joints
焊管焊接 welded pipe welding
加套管焊接接头 sleeve-weld joint
拼接焊接接头 butt joint
(+)被动型氢原子频 Passive hydrogen maser
团簇+连接原子结构模型 cluster-plus-glue-atom model
k介子原子 kaonic atom
N维氢原子 N -dimensional hydrogen atoms; N-dimensional hydrogen atoms
π介子原子 pi-mesonic atom; pionic atom
玻尔氢原子理论 Bohr hydrogen atom theory