Furthermore, a double-hulled tanker does not need longitudinal bulkheads for longitudinal strength, as the inner hull already provides this.
此外，双壳油轮并不需要纵向强度纵向舱壁，作为内部船体已经提供了这种。
The inner hull of wave shape is an important component in small oil burning boiler, and its quality has immediate influence on good running to the boiler.
波形炉胆是小型卧式锅壳式燃油燃气锅炉的重要部件，它的质量直接影响着锅炉的正常运行。
There are many disadvantages for adopting the press forming techniques of mold to manufacture the inner hull of wave shape, so we are difficult to ensure its manufacturing quality.
采用模型压制成形工艺制造波形炉胆存在诸多缺点，难以保证其制造质量。
There are many disadvantages for adopting the press forming techniques of mold to manufacture the inner hull of wave shape, so we are difficult to ensure its manufacturing quality.
采用模型压制成形工艺制造波形炉胆存在诸多缺点，难以保证其制造质量。
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