英语词汇diameter grade怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
?直径阶
... diameter grade 直径阶 domestic grade 民用规格 double spur grade 人字坡 ...

短语

1
The number distribution of diameter grade obeys normal distribution.
雷竹株数按径阶分布服从正态分布。
2
The strict requirements for block diameter and grade is difficult to meet when using ordinary blasting methods.
采用普通的爆破方法，难于达到对粒径和级配有严格要求的块度目的。
3
Calculation for short columns using Grade Q235 steel tube filled with Grade C30 concrete indicates that the critical diameter to thickness ratio of steel tubes is about 1700.
对Q235钢材、C30混凝土短柱构件的计算结果表明，钢管的最小临界径厚比为1700左右。

单词	diameter grade
释义	diameter grade 简明释义直径阶；径级网络释义 1 ?直径阶 ... diameter grade 直径阶 domestic grade 民用规格 double spur grade 人字坡 ... 短语 1 big diameter grade 大径级 2 diameter grade structure 径级结构 3 distribution of diameter grade 径阶分布双语例句 1 The number distribution of diameter grade obeys normal distribution. 雷竹株数按径阶分布服从正态分布。 2 The strict requirements for block diameter and grade is difficult to meet when using ordinary blasting methods. 采用普通的爆破方法，难于达到对粒径和级配有严格要求的块度目的。 3 Calculation for short columns using Grade Q235 steel tube filled with Grade C30 concrete indicates that the critical diameter to thickness ratio of steel tubes is about 1700. 对Q235钢材、C30混凝土短柱构件的计算结果表明，钢管的最小临界径厚比为1700左右。
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