一氧化碳有很简单且独特的最外层轨道结构，两个并列的叶形从尖端的末梢伸出，一个带正相而另一个是负相。
Carbon monoxide has a simple but distinctive outermost orbital structure with two side-by-side lobes sticking out from the end of the tip, one with a positive phase and the other a negative phase.
按照数学家们的分类，三叶形是最简单的纽结。 所谓纽结，它是三维空间中不与自己相交的封闭曲线，或者说是三维空间中与圆周同胚的图形。
The trefoil is the simplest knot in mathematicians' classification.
该公司已经在德文郡的佩恩顿动物园制作了一个100平米的立体农场的样板，它主要生产能快速再生的叶形蔬菜，像莴苣，这是为动物园的动物们准备的食物。
The company already has a 100-square-metre working prototype at Paignton Zoo in Devon, producing rapid-cycle leaf vegetable crops, such as lettuce, for the zoo’s animals.
这些树叶翠绿色，叶形长，两端逐渐收窄成尖状。
The tree's leaves are bright green, long, and taper to a point at both ends.
这款镀金色项链充满女性魅力，在设计中融入大量色彩时尚的叶形坠饰。
Presented as an accumulation of leaves in trendy colours, the gold-plated necklace is very feminine.
科林斯式柱型风格，较晚出现，采用带叶形饰的钟状柱顶。
The Corinthian order, a later development, introduced lonic capitals detailed with acanthus leaves.
介绍水轮机叶形检测多关节机械臂的主要结构特点及其工作原理。
The main structure's characteristics and working principle of the multijoint measuring manipulator were introduced in this article.
本种在茎的分枝，叶形，叶缘，和花序梗长度方面显示了巨大变化性。
This species shows great variability in stem branching, leaf shape, leaf margin , and peduncle length.
通过先驱体转化法，制备出三叶形、三折叶形和T形截面碳化硅纤维。
Trilobal, swirl-shaped and T-shaped SiC fibers were prepared from precursor polymer.
掺入的三叶形聚丙烯单丝纤维长度越长，水泥砂浆的抗干缩开裂性越好；
The longer the length of trefoil polypropylene filament fiber, the better the anti-dry-shrinkage cracking property of cement mortar.
一种石莼属的绿色海藻，有膜状叶形的不规则的叶状体，经常用在沙拉中。
Any of several green algae of the genus Ulva, having a membranous leaflike, irregularly shaped thallus sometimes used in salads.
冬枣实生苗二年生时叶片大小仍显著小于亲本值，叶形指数比亲本明显降低。
The size and shape index of the leaf are dramatically lower than parents' average value.
圆形横截面纤维在棉网和棉条中，比三叶形横截面纤维能产生较大的粘著作用。
It was found that fibers of circular cross section produce greater cohesion in webs and slivers than do trilobal fibers.
本文论述了植物叶形图像识别系统设计中的图像处理、特征提取及分类识别等问题。
Image processing, feature abstraction and classification of plant leaf shape with computer recognition system were discussed in this paper.
方法：对56例各种原因造成的颌面部较大面积的软组织缺损创面采用三叶形局部皮瓣进行修复。
Methods 56 patients with large area of maxillofacial soft tissue wounds caused by various reasons were cured with trefoil local flaps.
结论：只要供区条件良好，三叶形局部皮瓣修复颌面部较大面积软组织缺损是一种效果优良、安全可靠的方法。
Conclusion as long as the flap donor site is in good condition, the application trefoil larger flap to repair maxillofacial soft tissue defects is a effective, safe and reliable method.
一年生长枝叶片的叶宽、叶长、叶面积、叶柄长、叶基角均随叶序的增加逐渐减小，叶形指数和有缺刻叶的比例则增加。
In long shoot, the leaf width, leaf length, leaf area, petiole length and basal Angle decreased, but the leaf index and the ratio of lobation increased as its arrangement increased.
首先推导了纺丝动力学数学模型及多叶形纤维截面形变动力学模型，并将两者相结合，建立了多叶形纤维纺丝成形模型。
Firstly, spinning dynamic model and deformation dynamics model of multilobal fiber section were derived, then they were combined to describe the forming process of multilobal fibers.
一个新的系统分三组进行了测试，第二组(里塞尔0与封闭三叶形软骨和里塞尔1)能够最佳预测400至425之间的数字骨龄评分。
A new system with three groups was tested, and the second group (Risser 0 with closed triradiate cartilage and Risser 1) was the best predictor of a digital skeletal age score of between 400 and 425.
本次研究在西峡盆地含恐龙蛋地层中首次发现了无脊椎动物化石，如双壳类、叶肢介、腹足类和介形类。
Now we have recovered invertebrate fossils, such as bivalves, conchostracans, gastropods and ostracodes, in the dinosaurian egg-bearing strata.
橘树株形小于其它柑橘类果树，枝条细，叶呈矛状。
The tree is smaller than other orange trees, with slender twigs and lance-shaped leaves.
本文首先介绍了风扇的工作原理，包括基元级的速度三角形、叶型和叶栅参数以及叶栅的空气动力学方程。
This paper explains the working principles of a fan, including velocities on an elementary stage, parameters of blade types and cascades and the aerodynamics formulas of cascades.
结果表明：线叶嵩草草地地上生物量的增长曲线呈S形。
It was shown that the biomass of the type of grassland was consistent with the S-shaped Logistic growth curve.
植株灌木型，茎多分枝，可长至50厘米高或更高，茎干8到15毫米粗，淡绿色，有白霜，近根处色深暗，叶痕呈双凸形。
Plant shrubby, caudex branching, to 50 cm tall or more, 8-15 mm thick, pale green and glaucous above, darker below, leaf scars lenticular.
叶互生，倒披针形，钝，无柄，半圆柱形；花序简单，直立，几乎无花序叶，5–12（-15）厘米高。
Leaves alternate, oblanceolate, obtuse, sessile, semiterete; flowering branches simple, erect, sparsely leafy, 5 – 12 (- 15) cm.
叶互生，倒披针形，钝，无柄，半圆柱形；花序简单，直立，几乎无花序叶，5–12（-15）厘米高。
Leaves alternate, oblanceolate, obtuse, sessile, semiterete; flowering branches simple, erect, sparsely leafy, 5 – 12 (- 15) cm.
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