coarse flake graphite 粗片状石墨
coarse-grained graphite [材] 粗颗粒石墨
coarse grain graphite 粗粒级石墨
coarse graphite
粗石墨
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The heat treating process was improved for the malleable cast iron, in accordance with its long annealing period, coarse graphite, residual carbide, lower mechanical properties and limited serve life.
针对可锻铸铁退火周期长、石墨粗大、碳化物消除不彻底、退火工件力学性能低和使用寿命短的问题，对它的退火工艺进行了改进。
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