First, the general form of input-output equation has been given and a input-output difference equation corresponds to a class of canonical form has been obtained.

首先给出了输入输出方程的一般形式，并对于一类规范型给出了相应地输入输出差分方程。

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The author discusses a class of general of singular boundary value problems by using the first integral method, and the necessary and sufficient condition of positive solutions was obtained.

运用首次积分法讨论了较广泛的一类常微分方程边值问题，得到了正解存在的充要条件。

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In line with the "integrity of your future weave" as a principle of service, for the general students to study abroad to provide the first-class service.

本着“以诚信编织您的未来”的服务宗旨，致力于为广大学员提供一流的出国留学服务。

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The Neil Armstrong, first of the Armstrong-class Auxiliary General Oceanographic Research (AGOR) ships, will be equipped with sonar to map the ocean floor and laboratories for experiments.

FORBES: U.S. Navy Names Ship After Neil Armstrong

At General Electric, Jack Welch made the decision to fully fund Crotonville, a first-class training program for employees out of which emerged a generation of leaders, many of whom have gone on to run other companies.

FORBES: You Can Make Better Business Decisions.

At the last general election Labour made pledges on cutting primary school class sizes, introducing legislation for a Welsh Assembly in the first year, cutting NHS waiting lists by an extra 100, 000, getting 250, 000 under-25s off benefit and into work (around 13, 000 in Wales), and setting tough rules for government spending and borrowing.

BBC: Labour's pledge card for Wales