Mdd
abbr. microgram per square decimeter per day 微克/分米/天（腐蚀速率单位）
🗣️ 情景例句
Can I count on you to help me?
我能仰仗你的协助吗？
It's available in a variety of sizes at convenience stores and department stores as well.
有各种大小型号，在便利商店和百货公司均有。
She stood three feet high and her hands rested on her hips.
她身高3英尺，双手叉腰。