英语单词大全

a vein of coal

中文翻译

煤层

常见例句

1

A sort of blue or black clay lying near a vein of coal.

今日更新

更新时间：2025-09-15 15:54:38

sulfur-bearing crude

manipulative I/O statement

load-elongation curve

nuclei Principalis cerebelli

Kraske's position

Maunoir's hydrocele