美国标准

Most testing for certification is done according to protocols that are part of the NSF International Standards.

测试对於证明做根据是美国国家科学基金会国际标准的一部分的协议。

ATCC activities are housed in a Manassas, Virginia facility. The 126,000 sq. ft. building is monitored constantly by on-site security staff, and electric power is backed up by on-site generators. The repository portion of the facility occupies 18,000 sq.

ATCC成立于1925年，是世界上最大的生物资源中心，由美国14家生化、医学类行业协会组成的理事会负责管理，是一家全球性、非盈利生物标准品资源中心。

And distances were great. The country was big in 1815 by European standards, and it would get even bigger. In 1803, President Thomas Jefferson negotiated the purchase of the Louisiana Territory from France, doubling the size of the United States.

距离很远。按1815年的欧洲标准来看，那里美国是很大的，并且甚至更大。1803年， Thomas Jefferson 总统从法国那儿购下路易斯安那，使得美国的领土增加了一倍。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。