This means that the lowest mass black holes may be very rare, short-lived or non-existent, creating a conspicuous gap between the most massive neutron stars and the least massive stellar black holes.

也就是说，那些最小的黑洞恐怕真是转瞬即逝或者压根就没存在过。这使得最大的中子星与由最小质量恒星产生的黑洞间存在巨大的差距。

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The air gap control with the mass change of magnetic suspension nonlinear system and the large scope variety of air gap is considered.

考虑磁悬浮非线性系统在质量变化和空气间隙大范围变化情况下的空气间隙控制问题。

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During the following month, arrangements were made to purchase 50,000 units of Swedish dextran for the Armed Forces, to bridge the gap while U. S. manufacturers were getting into mass production.

在随后的一个月，安排为武装部队购买50,000单位瑞典葡聚糖，以弥合这一差距，而美国制造商已经进入大规模的生产。

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Car makers are betting that mass production will help them close the gap after 2004.

ECONOMIST: Fuel cells meet big business

Mass production will eliminate some of that gap, but not all of it.

ECONOMIST: Fuel cells hit the road

Ms Cooper adds that because New Zealanders are geographically remote and have little exposure to mass labels, like Gucci and the Gap, designers ignore the rules.

ECONOMIST: The unlikely rise of New Zealand's fashion industry