crackfree

常见例句

• The coatings composed by the chosen refractory is crackfree in high temperature.The castings using the coatings is free of surface defect and the surface roughness can reach 18 - S.
  根據此法選出的耐火材料所組成的塗料在高溫急熱時不開裂，澆注出的鑄件表麪無缺陷，表麪粗糙度達18-S。
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