Also write - enable ? - ring; protection ring ; file - protect ring.
又称为允写环 、 护环、件保护环.
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The improvement of Multiple centrifugal pump sealing protection ring for ammonia production was introduced.
介绍了合成氨生产中多级离心式打水泵密封保护环的改造.
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Usually magnetic roller protection ring ( roll shoulder ) and calibration of the matrix is a steel ring.
通常磁性辊保护环 ( 辊肩 ) 和校准环的基体为不锈钢.
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