成弓形

One was the pressure the N American continent is under as it is pulled into a bow, the Aleutian Islands pulled toward the tip of Mexico, with the center of the bow at San Diego.

其中一个是由于北美大陆被拉成了弓形，板块底部受到压力，阿留申群岛被朝着墨西哥顶部的位置拉伸，而弓形的中心位置处于圣地亚哥。

Forefeet : Broad,with strong, tight, well arched toes.

前腿：宽阔，强健，紧密，脚趾成弓形。

In this paper, we show a formula for the arciform area enclosed with a parabola and a straight line by means of two kinds of clever separation and the knowledges of elements mathematics such as the sum formula of infinite decreasing geometric sequence .

文章运用两种巧妙的分割和利用无穷递缩等比数列求和公式等初等数学知识，求出了抛物线与相交直线围成的弓形面积计算公式。

Almost all of the surface is then paved in blocks of Trentino Porphyry, laid in an arch pattern in red and grey.

几乎所有的路面都铺设着灰色和红色的特伦蒂诺斑岩，拼贴成弓形的纹路。

A stinkhorn of genus Pseudocolus; the fruiting body first resembles a small puffball that soon splits open to form a stalk with tapering arms that arch and taper to a common point.

属于p的鬼笔菌；果实体最初象一个小的马勃菌，很快裂开形成茎干，尖细的胳膊弯成弓形，向公共点逐渐变细。

The cat's back hooped under his hand .

猫背在他的抚摸下卷缩成弓形。

830With a piercing epileptic cry she sinks on all fours, grunting, snuffling, rooting at his feet: then lies, shamming dead, with eyes shut tight, trembling eyelids, bowed upon the ground in the attitude of most excellent master.

830（随着一声癫痫性的喊叫，她趴了下来，呼噜呼噜直喘，喷着鼻子，刨着脚跟前的地。然后双目紧闭，眼睑颤动，以无比娴熟的技巧把身子弯成弓形，装死躺下。

Cambered sole - A curved or arched sole with a down-turned toe.

弓形鞋底。弯曲成弓形的鞋底，脚趾蜷曲向下。

Firm your scapulas against your back torso, lengthen your coccyx toward the floor, and arch your upper torso back slightly.

肩胛骨稳定向背部延伸尾骨向地板，将背部微微向上顶成弓形。

One is preshaped NiTi rocking-chair archwire whose form is like letter "L", the other is the standard arch form rocking-chair archwire which is shaped by orthodontists in clinic according to various standard arch forms of straight wire appliance.

临床常用的摇椅弓形主要有两种：一种是&L&形的预成NiTi摇椅弓；另一种是我们在临床上自己弯制的、与各种标准弓形一致的标准弓形摇椅弓。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。