Application of PLC in Instrument for Measuring Inner Perimeter of Steel Wire Ring;
PLC在钢丝圈内周测长仪中的应用
On the relation between the circumference of a connected graph and the coefficient of its color palymonial;
连通图的周长与它的色多项式系数的关系
Teacher: The shape of the parallelogram has changed. What about its perimeter?
师：图形的形状变了，而周长怎样？
Timer must be disabled when graphing readings for extended periods.
当在观看较长周期的图形和读值时，必须关闭定时器。
The computation precision of metal image area and girth was increased, and the algorithm for traditional method of computing image was improved.
研究提高金属图像面积和周长的计算精度，对计算图像像素的经典链码方法加以改进。
Girth, represented by number 1 on the diagram, is the total distance around your package or object at its widest point, perpendicular to the length.
周长（在图表上以数字1表示）是在最宽处围绕包裹或物体的完整距离，与长度垂直。
the life cycles of plant species
植物种生活周期的长短
The new college president was installed last week.
新的学院院长上周就任。
a young tree measuring only 18 inches round
周长仅18英寸的小树
an old tree that was six feet around
一棵周长6英尺的老树.
The circumference of the earth is almost 25000 miles/The earth is almost 25000 miles in circumference.
地球的圆周长约为25000.
It is well known that displaced workers sustain prolonged income losses while trying to find new jobs.
众所周知，被解雇的工人在试图找到新的职业的同时他们的收入会遭受长时期的损失。
Set aside a couple of uninterrupted hours every week to think about the"big picture" and your long-term goals and objectives, and to develop strategies for attaining them.
每周抽出两三个小时不受打扰的时间，想想你的“宏图”和长远目标，并设想种种达到目标的策略。
She had magnificent blonde hair， in profusion. One of those picture children often reproduced in advertising leaflets and the photogravure sections of the Sunday papers.
她长着一头漂亮浓密的金发，就像刊登在广告插页上和周日报纸图片版上的那些孩子一样。
Students: The length of the curve making a circle is called the perimeter.
生：围成圆的曲线的长度叫做圆的周长。
There is a long wall around the city.
城市的周围有一道长长的城墙。
the ratio of the circumference to the diameter of a circle.
圆周长度与圆的直径长度的比。
A wave that repeats, like the one above, is called a periodic wave.
如上图所示的周期性的波，称之为周期波。
A variety of albite occurring as elongated white crystals.
周缘在白色晶体上延长的各种钠长石