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1·The plane veered off the runway and crashed through the perimeter fence.

这架飞机突然偏离了跑道并且冲断了周边的护栏。《柯林斯英汉双解大词典》

2·They ended up ripping down perimeter fencing and tussling with the security staff.

他们最终扯掉了周边的栅栏，并和保安人员扭打起来。《柯林斯英汉双解大词典》

3·A fence marked the perimeter of the field.

一道篱笆标明了那块田地的周界。《新英汉大辞典》

4·Guards patrol the perimeter of the estate.

保安人员在庄园四周巡逻。《牛津词典》

5·By night, the perimeter wire was illumined by lights.

夜晚，周遭的铁丝网都被灯光照亮。《柯林斯英汉双解大词典》

6·The two men broke out of their cells and cut through a perimeter fence.

那两个男人逃出牢房并穿过了一道围墙。《柯林斯英汉双解大词典》

7·Staff withdrew from the main part of the prison but secured the perimeter.

工作人员从监狱的主体区域撤了出来，但封锁了监狱四周。《柯林斯英汉双解大词典》

8·The 31-inches main circular window is the biggest window ever bound for space. The six windows on the perimeter are trapezoid-shaped.

31英寸宽的主圆窗，是有史以来最大的窗户。四周的六扇窗户是梯形的。

9·You fence the perimeter to keep out cows and people.

你用篱笆把四周围起来，把牛和人们都隔在外面。

10·The team set up a perimeter and began sweeping the area clean.

研究小组在此地圈定了一个周长，开始着手清理这块区域。

周长

1·Blue flags define the excavation perimeter, while yellow ones mark the location of fossils or stone tools.

蓝旗用来显示发掘地的周长，而黄旗用来标明发掘出化石或石制工具的地点。

2·The team set up a perimeter and began sweeping the area clean.

研究小组在此地圈定了一个周长，开始着手清理这块区域。

3·The second test (calculate the perimeter as 10 units) works in a similar way.

第二个测试(计算周长为10)，与前面的方法相似。

4·Remove the pins, then stitch all around the perimeter, 1.5cm from the edge, as marked in figure A.

将大头针去掉，沿周长在离边缘1.5cm处缝一周，如图A。

5·Mistakes, like passing the length and width as parameters to Area and Perimeter rather than to the constructor, are corrected by refactoring.

类似于“将长度和宽度以参数的形式传递给面积和周长，而非在构造函数里指定”这样的错误，可以通过重构来修正。

周界

1·A fence marked the perimeter of the field.

一道篱笆标明了那块田地的周界。《新英汉大辞典》

2·The horizontal perimeter of clerestory glazing is a driving architectural element in the new building, providing light during the day and emitting a glowing band of light at night.

玻璃天窗的水平周界是新建筑的一个最充满活力的建筑元素，它白天可提供日光，而在晚上则成了一条发光的光带。

3·Results: the perimeter of omental bursa, especially, the relation of superior recess of lesser sac to caudate lobe of liver was indicated.

结果：探明了网膜囊上隐窝的周界，尤其是网膜囊上隐窝和肝尾状叶的关系。

4·An intense field dielectric air filtration system includes a perimeter frame for wall or ceiling mounting at the inlet of a return air duct for an air conditioning apparatus.

一种强场电介质空气过滤系统包括安装在空调装置的回风管的入口处的用于壁或天花板的周界框架。

5·The paper researches and develops high voltage of the perimeter wire net monitor, the alarm system, the goal lies in the realization human nature management.

研发“周界高压电网监测、报警系统”，目的在于实现人性化管理。

(1)wetted perimeter[地]湿周

(1)perimeter blasting光面爆破；周边爆破；巷道周边爆破法