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The C30 carbyne trefoil knot studied is intertwined by the sp hybridized15 chain, which is topologically chiral and belongs to D 3 point-group of symmetry.

三叶结分子是最简单的非平凡纽结分子， C30卡宾三叶结分子是由一条闭合的15 sp杂化碳链组成的，是具有 D 3对称性的拓扑手性分子。

Furthermore, the tied trefoil knot has less conjugation property and Jahn-Teller effect but higher total energy than the cyclo-C30 carbyne, that is, the process of "tied" could increase the energy of molecules.

因此，分子打结是一个能量升高的过程。

The trigonometric uniform polynomial curve constructed in this paper has two advantages. One is that the curve can be continuous and the shape can be adjusted with the fixed tangents. The other is that only adding one new knot, the curve can pass through the tangent, which reduces excess points.

利用绘出的三角均匀多项式曲线来逼近多边形，主要有2个特点：一是曲线能达到连续，并且在切点固定时曲线的形状可以进行调整，二是只需增加一个新节点就可以通过切点，减少了额外点。

"The Athenian trireme was about 120 ft (37 m) long, and was rowed by 170 oarsmen seated in three tiers along each side; it could reach speeds of more than 7 knot s (8 mph, or 13 kph)."

雅典人的三层划桨战船长约37公尺，由170名桨手在三层高的船两边划动，速度可达到7海浬；小时(即13公里；小时)。

The effects of different hormone on axinary buds induction, tufty bud differentiation, and rooting were studied by means of orthogonal design and common buckwheat stem segment explants with a knot.

以普通荞麦植株带节茎段为外植体，用正交设计法研究不同激素处理对荞麦腋芽、丛生芽和根的诱导及分化过程的影响，建立了荞麦离体培养快速繁殖技术。

Secrets hiding in the glabellum、 matted love knot with lonely and bitter tweedle go with shaking sleeves to dance in the moon and pour out sadness lonely

藏在眉间的心事，纠缠的情结，和着幽怨的琴声，月下轻舞水袖，寂寞的诉说着忧伤。

I always can't bear to wake up my memories about the past, I wish I could chase the deep eyesight of years, watch for the fragrance of flowers, worry between the glabellas, matted love knot, with the piece of hidden bitter tweedle, dancing by winging sleeves, pouring out mourn lonely.

总是不忍将往事惊醒，情愿追随岁月深深的目光，守候一季又一季的花香，藏在眉间的心事，纠缠的情结，和着幽怨的琴声，月下轻舞水袖，寂寞的诉说着忧伤。

And I heard you were tying the knot.

我听说你喜结良缘了。

We're tying the knot in October.

我们将在十月结婚。

Ulcerate sex knot enteritis is akind of rectum with still ill-defined cause of disease and colonschronic not particularity disease disease.

溃疡性结肠炎(ulcerative colitis，UC)是一种病因尚不清楚的直肠和结肠慢性非特异性炎症性疾病。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。