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The invention discloses a multi-cell pilot frequency distribution method applied in an orthogonal frequency-division multiplexing system, which comprises the following steps: generating at least two different original frequency hopping sequences according to a predetermined pilot frequency domain; generating a combined frequency hopping sequence (having length greater than that of the original frequency hopping sequences) from at least two different original frequency hopping sequences; generating different pilot frequency structures satisfying collision threshold requirements based on the combined frequency hopping sequence; and distributing the generated pilot frequency structures to each cell.

本发明公开了一种多小区导频分配的方法，用于正交频分复用系统，按照预定的导频频域间隔生成至少两种不同的原始跳频序列；将至少两种不同的所述原始跳频序列生成组合跳频序列，所述组合跳频序列的长度大于所述原始跳频序列的长度；基于所述组合跳频序列生成满足碰撞门限要求的不同导频结构；将所述生成的导频结构分配给各小区。

And don't assume you can escape by climbing a tree. That only works if you have enough time to climb at least 30 feet high. Black bears are good climbers and grizzlies can climb at least partway up a tree.

另外，也别以为爬到树上就可以逃过一劫，除非您有足够的时间可以爬到30英尺高的地方，黑熊可是爬树高手，灰熊至少也能爬到树的中段。

D. Operators engaged in receiving ship pollutants with ships shall have at least 1 Chinese ship of 300 tons or above which is fit for receiving the ship pollutants; those engaged in receiving ship pollutants with the port shall make sure that the port receiving facilities are in normal conditions; and those with vehicles shall have at least 1 special purpose vehicle for garbage receiving, transport and clearance.

四使用船舶从事船舶污染物接收的，应当拥有至少一艘不低于300总吨的适应船舶污染物接收的中国籍船舶；使用港口接收设施从事船舶污染物接收的，港口接收设施应处于良好状态；使用车辆从事船舶污染物接收的，应当拥有至少一辆垃圾接收、清运专用车辆。

Each item should be surrounded by at least two inches (5.08 cm) of encapsulated-air plastic sheeting and placed at least two inches (5.08 cm) away from the box wall s.

每个物品都应当使用至少两英寸（5.08 厘米）厚的压缩空气塑料薄膜包在外面，并放置在距包装箱侧面至少两英寸（5.08 厘米）远的地方。

A method for use in a DPC includes: receiving ( 400 ) a control signal based on a desired output signal that identifies a first output tap on the delay line; based on the control signal, selecting ( 410 ) at least two output taps on the delay line for receiving at least two different phase-shifted clock signals; and generating ( 420 ) an output signal based on the control signal and the received phase-shifted clock signals that is substantially the desired output signal.

在DPC内使用的方法包括：基于期望的输出信号接收(400)用于识别该延迟线上的第一输出抽头的控制信号；根据该控制信号，在该延迟线上至少选择(410)两个输出抽头，以至少接收两个不同相移时钟信号；以及根据该控制信号和收到的基本上是期望的输出信号的相移时钟信号，产生(420)输出信号。

Girth flange bolting shall be of stud bolt type, threaded full length, and at least M16 for flange of 600 mm and smaller inside diameter and at least M20 for over 600 mm inside diameter flange.

翼缘法兰螺栓应为双头螺栓，螺纹为全长型，内径600mm 或以下的法兰的螺栓至少为 M16，内径600mm 以上的法兰的螺栓至少为 M20。

The turbine comprises at least one radial or diagonal turbine stage (120) with radial or diagonal feed stream and axial exhaust flow and at least one axial turbine stage (121 - 125) with a axial feed steam and axial exhaust flow.

该涡轮机包括至少一个带有径向的或者对角线的入口和轴向的出口的径向的或者对角线的涡轮机级(120)和至少一个带有轴向的入口和轴向的出口的轴向涡轮机级(121-125)。

As a primary result, threshold current of 200~700 mA and DFB mode oscillation within a range of at least 80℃ is achieved, and stable single longitudinal mode oscillation is maintained up to at least 20 mW output.

作为初步结果，氧化膜条形器件阈值电流为200~700mA，单模输出功率至少为20mW，单模工作持续到至少80℃。

At least a part of the pressed powder core part forms at least a part of a winding slot part around which a winding is wrapped.

所述压粉铁芯部的至少一部分构成线圈槽部的至少一部分，在所述线圈槽部上缠绕有线圈。

Sixty-eight percent of patients had at least some college education, and 77% had at least 9th-grade level literacy skills.

68%的病人至少经历了一定程度的大学教育，77%至少有9年级的读写水平。

Now, however, all children continue in "comprehensive" schools, and the eleven-plus determines which courses of study the child will follow.

然而现在，所有的孩子都要在综合学校继续学习，所以这次考试只是决定他们将要学习哪些课程。

Cultivatable land , and led to a general recognition that development must not be carried at the cost of agriculture .

城区的迅速扩大在很多情况下侵占了宝贵的可耕地，使人们普遍认识到发展不能以牺牲农业为代价。