linear sealing angle 线性封严角
linear-contact high frequency sealing machine 线性接触高频封口机
linear sealing
线性密封
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The original face sealing is modified to linear sealing, which significantly reduces the wear and tear and extends the lifetime.
将原来的面密封改为线密封后，磨损明显减小，使用周期大大延长。
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