basal plane

例句：

1. 1.The engineer used a laser to create a precise base plane for the machine.
   工程师使用激光为机器创建了一个精确的基平面。
2. 2. The scientist discovered a new type of crystal that grows on the basal plane of the earth.
   科学家发现了一种在地球基底面上生长的新晶体。
3. 3. The team worked together to level the basal plane and prepare the site for construction.
   团队共同努力，平整基底平面并准备施工场地。