the validity period of food production, food circulation and catering licenses shall be 3 years.

life is like riding on a bus.

人的一生就像乘坐旅游巴士.

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in 1998, 60 companies operated 133 coach services across the boundary.

截至一九九八年底, 开办过境旅游巴士服务的公司共有60家,提供133条过境旅游巴士服务.

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for this purpose , the past fifty years , a wide range of traffic flow theories and models.

以前的研究主要集中于宏观模型, 讨论交通流量及密度的变化.

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abstract it is an important and key part to extract moving vehicle in intelligence transportation system.

摘要车辆提取在视频交通流量检测系统中是最重要、最关键的一环.

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problem areas need to be addressed such as traffic flow, full utilization of personnel, and equipment.

例如交通流量 、 人员和设备的全面利用等问题需要引起注意.

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a vision-based method of vehicle counting proposed.

提出了一种基于视频的交通流量监测的方法.

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less cars means less pollution.

减少交通流量就会减少空气污染.

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peripheral auto routes drain traffic from the city center.

外环高速公路将交通流量从市中心引开.

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" don't resort to the shotgun approach," forster advises.

“不走寻常路，”福斯特如是建议。

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the influences of variations in speed and inlet port elevation angle on the scavenging process are investigated via simulating scavenging and exhaust processes of motored two stroke diesel engine by using multi dimensional digital simulating method.

利用多维数值模拟方法，对二冲程柴油机倒拖情况下的进、排气过程进行模拟，研究转速变化、进气口仰角变化对扫气过程的影响。

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and he really didn't mind the pain, which was more an ache, a small throbbing in his skull, like a motored apparatus running in liquid to purify it.

痛，其实更像麻痛，更像脑壳里的轻微颤动，恰似装有马达的机器在液体里转动一样，会使机器得到清洗。

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after we said goodbye, i drove the car onto the ferry and climbed out, so i could stand on deck as the boat motored out of the harbor.

我们说完再见后，我把车开到了渡轮上，爬了出来，所以当船发动驶出港口时，我能站在甲板上。

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to view the underwater wonders, we boarded a much smaller boat and motored an hour out to sea to reach the world-famous palancar reef.

去观看水下奇妙的世界，我们包租了一只小船出海一个小时，到达了世界著名的帕兰卡礁区。

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the right upper pre advancement section was constructed from february 5 of 1997 to february 19 of 1997 and the 150 w hydraulic motored vibroflot was adopted.

右上段进占施工时间1997年2月5日～2月19日，采用液压驱动150kW振冲器。

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so i was happy enough to be in control as we motored through a small california town in the prototype audi, making our way toward interstate 5.

所以当我们沿5号公路来到加州一个小镇，换我坐到驾驶座上时，我还是非常高兴的。

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the squish patterns in engine piston bowls with different geometry are visualized by the method of oil streak in a motored single cylinder test engine.

本文在一个拖动的单缸实验机上，利用油点条痕法显示了活塞上燃烧室凹坑中挤流运动的流谱，研究了燃烧室形状和几何尺寸对挤流谱的影响。

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working together with zhongan serial hydraulic rescue tools, bjq63/ 0.6 hydraulic motored pump is one of the power sources.

BJQ63/0.6型液压机动泵与“众安”系列液压破拆工具配套使用，为各破拆工具的动力源之一。

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wavelet analysis was used to calculate turbulence and mean velocity levels for ldv measurements made in a motored four valve spark ignition engine.

主要采用小波分析方法研究了四气门汽油机缸内空气运动的频率结构。

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the in cylinder turbulence is measured under the condition of a motored engine by using a hot wire anemometry.

缸内紊流测量是用热线风速仪在倒拖发动机试验台上进行的。

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we motored down to oxford for the day.

我们驱车到牛津过了一天。

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