In the world of universal metric in the process of Delambre discovered the fact that he had to face difficult choices: to continue to hide the error, or bravely tell the truth?

• 在全球普及米制的过程中德朗布尔才发现这一事实，他不得不面临两难的选择：是继续掩藏错误，还是勇敢地说出真相？