将其与子午线或其他的自然基准进行挷定并不是件容易的事情。
Tying it to the meridian, or any other natural benchmark, proved intractable.
几十年来围绕着实现质量自然基准，各国科学家进行了大量的研究，取得了巨大的进展。
Many scientists have worked to realize mass natural standard for several decades and have got great progress in this field.
这个石油巨头为了符合赤道原则——一系列旨在防止损害自然以及当地居民生活的进取性基准，花了六年时间来寻找最佳解决办法。
The giant oil firm spent six years trying to figure out the best way to comply with the “Equator principles”, an ambitious set of goals for avoiding harm to nature and indigenous people.
这个石油巨头为了符合赤道原则——一系列旨在防止损害自然以及当地居民生活的进取性基准，花了六年时间来寻找最佳解决办法。
The giant oil firm spent six years trying to figure out the best way to comply with the "Equator principles", an ambitious set of goals for avoiding harm to nature and indigenous people.
事实上，这些基准能够激励你前进，因为我们中许多人只要能够着眼于一些具体的能够实现的目标，我们自然而然地就会想要努力奋斗。
In fact, these benchmarks can help spur you on, as many of us are naturally inclined to work harder when we are able to set our sights towards specific, attainable goals.
一件事情就是要记住她的基准水平，或自然状态下瞳孔大小。
One other thing to keep in mind is her base level, or natural pupil size.
土地分等定级估价是在土地利用分类的基础上，根据土地的自然、经济条件，进一步确定各类土地的等级和基准地价。
Valuation of land classification in the land use classification based on the land, natural, economic conditions, further define the level of various land and benchmark land price.
研究和适应性管理技术，包括基准条件评价和自然价值及物种变化的监测已经建立。
Research and adaptive management techniques, including baseline condition assessment and monitoring of change for both natural values and species have been established.
介绍了以保护自然生态系统中水生生物为主要目标的美国水质基准技术指南。
According to the guidelines, numerical water quality criteria were derived on the basis of screening and analysis of toxicity test data of individual animal and plant species.
介绍了以保护自然生态系统中水生生物为主要目标的美国水质基准技术指南。
According to the guidelines, numerical water quality criteria were derived on the basis of screening and analysis of toxicity test data of individual animal and plant species.
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