darning device
... darning stitch 织补针迹 darning device 织补装置 darning needle 织补针 ; 补缀用针 ; 织补用针 ...
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这一定与相同的织补合金600有关，现在，想象一个底部装置的，仪表装置管道泄露。
And this has to do with the same darn alloy six hundred. Now just imagine a bottom mounted instrumentation tube leaking.
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