基准面的英文：
datum plane
Datum plan
基准面
Karst base level
喀斯特基准面
The piezpmetric head is also measured from the same datum level.
测压水头亦应从同一基准面算起。
Depths below datum are calculated from the corrected reflection times.
基准面以下的深度，需要根据作过校正的反射波时间来计算。
This fixture should be provided with a reference leveling surface, so that it can be kept level as the balance deflects.
这种装置应该有一个水平基准面，以便在天平变形时能够使之保持水平。
n. data的单数；数据，资料
Each datum has a unique key.
每个数据都有一个独特的键。
These facts of responsibility are an anthropological datums- varied and multiform
这些道德事实是一种人类学资料——性质不同，形式各异。
Let's get back to the datum to be explained.
让我们回到要解释的这份资料。
These facts of responsibility are an anthropological datums- varied and multiform.
这些道德事实是一种人类学资料——性质不同，形式各异。
The following requirements must be met in using datum instruments of measurement (hereinafter referred to as datum instruments)
计量基准器具(简称计量基准,下同)的使用必须具备下列条件
n. 飞机；平面；程度，标准，水平，境界；刨子
v. 用刨子刨平；掠过水面
adj. 平的；平坦的
The plane will take off soon.
飞机马上就要起飞了。
They planned to highjack a plane.
他们计划劫持一架飞机。
They announced his plane was delayed.
广播通知他所乘的航班晚点了。
Are you going to America by boat or by plane?
你到美国是坐船还是坐飞机？
The plane was given clearance to land.
飞机被给予着陆的许可。