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Secondly, based on the Mawhin's continuity theorem in coincidence degree theory and the Brousk's theorem, some novel criteron of the existence on periodic solutions are obtained under the more generalized assumptions than before.

主要工作是：第一，应用构造Liapunov函数以及Lasalle不变性原理，给出了解的有界性与收敛性的一些新的充分条件和充分必要条件，这些结果包含或扩展了已有文献关于同样问题的一些重要结果。

Where this had the most effect was at Copse, which is even quicker now than before, as it has always been one of the fastest we race through.

测试中，最显著的效果是在Copse弯，现在比以前更快了，它一直是我们最快通过的弯道之一。

As the school and county science fair are coming soon, students at Ribet are busier than before completing science fair projects.

随着学校和地区的科学节的到来，瑞贝学校的学生都在忙着准备自己的作品。

Debt of longer maturity is also available to creditworthy firms at lower interest rates than before the financial crisis.

信誉高的公司也能够以比金融危机前更低的利率获得长期贷款。

More and more people came here from outside Beijing ,which makes the city much more crowed than before .

越来越多的人从外面涌入，这就使得北京比以前越来越拥挤。

With the constant development of science and technology, the application of glass curtain wall is more wider than before, and its structure changes constantly.

随着科学技术的不断发展，玻璃幕墙的应用越来越广泛，其结构形成也不断发生变化。

Jonathan heard that the generals of Demetrius had returned to attack him with a stronger army than before.

约纳堂听说：德默特琉的将领，带着比以前更多的军队回来，要与他作战

objectiveto discuss the effect of the self-made negative pressure suction device in preoperative preparation of wound repair.methods27 patients who suffered soft tissue defect received the treatment of negative pressure suction device and underwent debridement during the time of dressing change, after 7 to 30 days （average 15.6 days） therapy, these wounds were repaired with skin grafts or flaps.resultsall of these patients' wounds became cleaner and smaller than before, and granulation tissue were fresh, the dermatoplasty or skin flap transplantation operations were successful.

目的：探讨自制简易负压吸引装置在创面修复术前期准备中的治疗作用。方法：对27例有皮肤软组织缺损的患者采用自制的简易负压吸引装置治疗，并在每次更换负压装置时进行清创。经过7～30日，平均15.6日的治疗后，在创面上行二期游离植皮或皮瓣转移修复术。结果：27例患者经过治疗后创面清洁，面积较前缩小，肉芽生长新鲜，游离植皮或皮瓣转移修复均一次性获得成功。

Thus, it should be understood that the dichroic filter may be located in locations other than before the optical concentrator and is generally located between the light emitting device and the wavelength converting element.

因此，应了解二向色滤光片不是在光学集中器前面的位置且大体上位于发光装置与波长转换元件之间。

If there is a dietician guides you to improve your diet habit, would it be healthier than before?

11* 如果有营养师指导你的饮食，会否对你的健康有帮助？

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。