were of equal size
大小相等
以上为机器翻译结果，长、整句建议使用 人工翻译 。
By measuring the equal density curves, the changes of compact density of iron powders with different particle size and different pressure were investigated.
通过对等密度线的测定，查明了不同粒度铁粉的压坯密度变化，以及在不同压力下压坯密度变化的规律。
youdao
应用推荐
模块上移
模块下移
不移动