plumbic ocher

例句：

1. 1.The construction site was covered with plumbic ocher, making it difficult to see the ground.
   施工现场被石灰石黄土覆盖，使得地面难以看清。
2. 2. The farmer used plumbic ocher to fertilize his fields, which greatly improved the quality of the crops.
   农民使用石灰石黄土来施肥他的田地，这极大地提高了作物的质量。
3. 3. The construction workers were wearing protective gear made from plumbic ocher,as it is highly resistant to impact.
   建筑工人穿着由石灰石黄土制成的防护装备，因为它对冲击有很强的抵抗力。