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- This paper presents a generalized Bertrand's theorem for mechanical variable mass systems with linear second order non-holonomio constraints, deter mining the applied forces to the systems above when one of its first integrals is given. 本文给出了变质量二阶线性非完整力学系统的广义Bertrand定理：已知上述系统的一个第一积分可确定作用在该系统上的力。
- Jack Kilby, Texas Instruments, developed the first integrated circuit. 杰克.;基尔比在德克萨斯仪器公司开发集成电路。
- Battle of Zhuolu, and promoted the first integration of the Chinese nation. 涿鹿之战，促进了中华民族的第一次融合。
- mean-value function for first integrals 第一积分中值函数
- In general, if a system of differential equations has a sufficiently rich set of first integrals such that its solutions can be expressed by these integrals, then we call the system is integrable. 一般说来，一个常微分方程动力系统称为是可积的，如果它有足够多的首次积分使得它的所有解都可以由这些首次积分函数表示。
- The quadratic system in space with a first integral of quadratic cylinder is discussed. 摘要继续讨论以二次柱面为首次积分的空间二次系统。
- In 1944 the first integrated Patent Act was officially publicized which included invention, new model and new style. 1944年，我国历史上第一部比较完整的包括发明、新型、新式样的专利法正式公布。
- Borland made a commitment to the technology of web services releasing Delphi 6 as the first Integrated Development Environment to support web services. Borland在Delphi 6中增加了web服务的功能,这也是第一个支持web服务的集成开发环境。
- Thisweek, the department issued its first “integrity report” since 2005;it reveals a basketful of bribery,fiddles and frauds. 这个星期，该机构出版了自2005年的首部“廉洁报告”，里面揭露了各种各样的受贿、渎职和欺诈行为。
- By the 1920's, a German company called Loewe invented the world's first integrated circuit which only needed one valve holder for a radio to function. 1920年代德国一公司，发明了世界上的第一个电路结合，让收音机只需要一个电子管座，就可以操作。
- Caravaggio , who created the first integrated SLP, put his focus on how to make still life identical with nature and reality . 卡拉瓦乔创作了第一幅完整意义上的静物画，他关注的是如何赋予静物以自然和真实。
- Their work led to the development of TACTICS for American President Lines, the world's first integrated, real-time, graphical vessel and yard planning system. 他们的工作帮助American President Lines开发了TACTICS,该产品是世界上第一个集成化、实时和图形化的船舶和货场计划系统。
- Leaving her first job was a watershed in her life. 辞去她的第一份工作是她生活中的一个转折点。
- In rural Georgia, black and white high school students are coming together for prom for the first time. Turner County High School held its first integrated prom Saturday. 在乔治亚一个小农镇，黑人高中生和白人高中生第一次共同参加学年舞会。特纳县高中周六首次举办了联合舞会。
- Cook the meat quickly at first to seal in the juices. 一开始要大火烧肉，以便保存肉汁。
- In the word "mother" the stress is on the first syllable. 在"mother"这一字里，重音在第一个音节上。,在＂mother＂这一字里，重音在第一个音节上。
- His illness was more serious than the doctor first thought. 他的病较医生原来以为的更严重。
- In 1983 the homebuilding office was converted into Guangzhou City Construction & Development Corporation, the first integrated real estate development enterprise in Guangzhou. 1983年“住建办”改制为“广州市城市建设开发总公司”，成为广州市最早成立的房地产综合开发企业；
- Passengers with cars must embark first. 带汽车的乘客必须先上船。
- It is the first integrated, Simatic IT project that is based completely on the ISA95 standard and is being implemented for the mining and materials processing industry. 这个是第一个完全基于ISA95标准以及实施于采矿和原料加工工业的集成SimaticIT项目。
