We conducted an extensive field survey of current geographic distribution of their natural range, and in situ and ex situ conservation status of the remnant populations of the two genera.

本研究通过野外调查，了解了中国秤锤树属与长果安息香属植物的地理分布、濒危现状及其迁地保护状况。

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A new on-line method to determine the particle size distribution using light ex-tinction is proposed in this paper.

提出了用光透消光法(或称全散射法)对颗粒尺寸及其分布进行实时在线测量的方法。

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The key prerequisite of using ex-core detector readings to reconstruct the in-core power distribution is to calculate the space response function accurately.

准确的堆外探测器三维空间响应函数是实现由堆外探测器读数重构出堆芯功率分布的关键之一。

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The ex-date is the day on or after which a security is traded without a previously declared dividend or distribution.

FORBES: Go Behind The Old Iron Curtain For Better Stock Bargains