The point of penetration through the diaphragms is sealed by E-beam welding.
The point of penetration through the diaphragms is sealed by E-beam welding.
通过横膈膜的穿透点用电子束焊接来密封。
The point of penetration through the diaphragms is sealed by E-beam welding.
通过横膈膜的穿透点用电子束焊接来密封。