Little attention is on questions of existence of positive solutions for BVP of singular differential equation on measure chains and the relevant papers are few.

测度链上奇异微分方程边值问题正解的存在性，研究的人较少，相应的文献也要少的多。

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They are the consequence of increasingly complex systems and a globalized economy of supply chains that have evolved more quickly than our ability to measure them.

它们是事物系统复杂性的增加和全球性供应链过快的变化，超出了我们衡量的能力。

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In this paper we discuss the classification of states and the invariant measure in coupling space in skew produce Markov chains.

本文主要讨论了绕积马氏链的状态分类和耦合空间上不变测度问题。

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Yum, operator of Taco Bell, Pizza Hut and KFC restaurant chains, forecast a 4% fall in fourth-quarter China same-store sales, an effective measure of financial health, as well as popularity, because it strips away volatile results from newly opened or closed locations.

FORBES: Heartburn And Heartache Ahead: Sour Taste For Yum After Growth Worries