a surveyor''s mark on a permanent object of predetermined position and elevation used as a reference point 同义词：benchmark,
例句与用法
1.
Bench mark forecast 根据原有资料进行预测
2.
Our company has been the bench mark for sports gear since 1975 本公司的产品从1975年起一直是（保持）体育用品的（优质）水准。
3.
Bench mark elevation 水准点标高
4.
Bench mark monument 水准标石
5.
Tidal bench mark 验潮水准点
6.
Primary bench mark 水准原点
7.
Bench mark card 水准点卡片
8.
His wife has her work cut out for her . never see them sit on a bench marked wet paint 从来没看到过女人坐在标明"油漆未干"字样的长凳上。
9.
The structural design and improvement of bedrock bench marks are key points for quality assurance 标体的结构设计与优化是确保基岩标质量的关键。
10.
During construction of donghai bridge of yangshan deep - water port , bedrock bench mark , which is an important surveying datum mark , played an important part in control survey and elevation transmission 摘要基岩标是重要的测量基准设施，在洋山深水港东海大桥的工程建设中发挥了控制测量与高程传递的重要作用。
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