机身整体铸造，刚性好，性能稳定。
C型机身设计，整体铸造，刚性好，性能稳定。
The C-body design, whole body cast, rigid and stable performance.
化学稳定性好在较宽的温度范围下机械强度好，刚性高。
The chemical stability in a wide range of temperature, high mechanical strength good rigidity.
化学稳定性好在较宽的温度范围下机械强度好，刚性高。
The chemical stability in a wide range of temperature, high mechanical strength good rigidity.
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