Furthermore, because birding is primarily observation, it has a very low impact on the local environment.

此外，由于观鸟主要是以观察为主，它对当地环境的影响非常的小。

youdao

Their observation in low-energy processes is a very instructive—and very cheap—complement to data obtained from high-energy physics.

他们觉得低能物理的观测结果只不过是对高能物理的简易补充而已。

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The device, simple in making, low in price, and easy to popularizing, solves the problem that gas observation can't be made in a cold spring in the field.

该装置解决了地下水化学在野外冷水泉无法进行气体观测的难题，而且制作简单、费用低廉，非常便于推广。

youdao

With all three vehicles, Arianespace, the company that runs Kourou, will now be able to offer satellite operators a ride for any type of spacecraft to all kinds of orbit - from the low, pole-crossing orbits used by Earth observation missions, to the high, geostationary locations favoured by big telecommunications platforms.

BBC: Vega rocket set for maiden voyage

But the chapter marks a significant departure from the Freakonomists' modus operandi: it contains little in the way of economics, other than a brief discussion of externalities and the observation that the hose system would be much cheaper than building an entirely new low-carbon energy infrastructure for the world.

ECONOMIST: The controversy over SuperFreakonomics

India's low productivity is the central preoccupation of McKinsey's analysis, which starts with the unexceptionable observation that India needs nearly to double its economic growth rate to 10% if it is to employ the masses due to enter the workforce over the next decade.

ECONOMIST: Why India's economy needs faster privatisation