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牙齿四周会形成小型带状物。
Small pockets form around the teeth.
youdao
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研究了汽车齿轮钢中带状组织形成的原因及其与热处理的关系。
Trial study of a new type of automobile gear steel 20CrMnMoV is carried out.
youdao
-
研究了汽车齿轮钢中带状组织形成的原因及其与热处理的关系。
Trial study of a new type of automobile gear steel 20CrMnMoV is carried out.
youdao