Environmental factors are always one of the major reasons why the symbiotic nitrogen-fixing system of rhizobia and legumes cannot come into full play in agricultural production.

环境因子的限制一直是豆科植物-根瘤菌共生固氮体系没有在农业生产中充分发挥作用的重要原因之一。

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Under the influences of technical rationalism, however, pedagogy has not only brought into full play its role in modern. society, but also come across many problems and dilemma.

但是，在技术理性的影响下，教育学在充分发挥它在现代社会中应有的作用的同时，也面临着诸多问题和困惑。

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Under the financial fair play rules, which come into force this summer but do not take full effect until 2013, teams will not be able to spend more than the income they generate from the football side of their business - which includes gate receipts, TV deals and sponsorship.

BBC: Reds query Man City-Etihad deal

The full capability of sensors began about 50 years ago when factory automation started to come into play.

FORBES: Why Sensors Are a Force of Context