高速走丝电火花线切割加工过程中，电极丝有时会出现先有花斑后断丝的现象。
Indistinct pattern are sometimes found on the wire electrode wound regularly in reciprocating travelling WEDM.
高速走丝电火花线切割加工过程中，电极丝有时会出现先有花斑后断丝的现象。
Indistinct pattern are sometimes found on the wire electrode wound regularly in reciprocating travelling WEDM. It is appeared before wire broken.
根据试验时经常出现的引火源电热丝烧断的现象，提出了改进的建议。
The electric fire ignition source was often burnt out, some Suggestions on how to improve the condition were given.
根据试验时经常出现的引火源电热丝烧断的现象，提出了改进的建议。
The electric fire ignition source was often burnt out, some Suggestions on how to improve the condition were given.
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