查询词典 obtuse

Sepals 5, imbricate, apex obtuse to caudate.

萼片5，覆瓦状，先端钝到尾尖。

The criteria of the minimum zone circle method, minimum circumscribed circle method and maximum inscribed circle method were researched and the criterion of obtuse triangle was proposed.

研究了圆度误差评定中最小区域圆法、最小外接圆法和最大内接圆法的判别准则，提出了具有最小误差的外接圆和内接圆的钝角三角形准则，使圆度误差的判别准则得到完善。

Based on the criteria of roundness error, the definition of the circumscribed circle and inscribed circle with the least roundness error was given. The solution to the circumscribed circle and inscribed circle with the least roundness error was proposed when they met with the criterion of obtuse triangle.

根据圆度误差评定的判别准则，给出具有最小误差的外接圆和内接圆的定义，并提出了解决具有最小误差的外接圆和内接圆满足钝角三角形准则时的误差评定方法。

Fruit oblong, terete, glabrous; ribs 5, acute or round-obtuse; vittae 1 in each furrow, 2 on commissure.

果长圆形，圆柱状，无毛；棱5，锐尖的或圆形钝；油管每棱槽1，在合生面上2。

Leaf blade crenate; obtuse or auriculate at base.

叶片具圆齿；钝的或耳形在基部。

Margin of leaf blade crenate; petals triangular or triangular-ovate, apex obtuse, rarely acute.

叶片的边缘具圆齿；花瓣三角形的或三角状卵形，先端钝，很少锐尖。

When to take four samples in one tree, commonly the samples are taken in "cross" relation, but the analysis shows it is not the best choice. The more the samples are taken at obtuse angle with each other, the better the representation of the samples.

在两个或者3个方位采样时，方位之间呈钝角关系时，其代表性最好。4个方位采样时，一般使用的"十字交叉法"并不是最好的选择，建议采样的方位之间尽可能多的成钝角关系。

To address the issue, we analyze the correlation and similarity of the different radii sequence and the different combination sequence with the full- ring-sample sequences, based on 642 δ13C data of cellulose fixed in tree-ring at 8 different radii of two Cryptomeria fortunei tree disks from Mt. Tianmu, a subtropical mountain of China. It suggests that 2 to 4 radii mixture sample is the better and more efficient choice for the tree-ring δ13C analysis. It had better to take samples at obtuse angle with each other when to take samples at two or three radii.

研究利用来自天目山的两个柳杉树盘的多方位的和整轮的碳同位素测试数据（共计642个），通过不同方位和不同方位组合的平均碳同位素序列与整轮碳同位素序列的关系的多角度的考查、分析发现，并不是采样的方位数越多越好，选择2~4个方位采样合并分析树轮稳定碳同位素，既经济方便又能比较好的反映一棵树的δ13C变化过程与趋势。

Petals white or greenish white; flowers at least 15 mm, middle outer sepal and apical appendage of keel cucullate; stems with dense, raised leaf scars and lenticels; leaf blade slightly fleshy, elliptic-obovate to spatulate, 5-6 mm wide, apex obtuse.

花瓣白色或带绿色白色；花至少15毫米，中间外部萼片和龙骨瓣顶端附属物兜状；茎具紧密的，提高叶痕和皮孔；叶片稍肉质，椭圆状倒卵形的到匙形，5-6毫米宽，先端钝。 12 P。 dunniana 贵州远志

It has been obtained that the distortion characteristics of the gently-slant rock mainly include asymmetrical distortion and obtuse angle destruction.

尝试采用以板状单元模拟缓倾层状岩体，对徐州矿区旗山矿缓倾（8°）层状岩体的产状及结构性特征进行模拟，再现了巷道的破坏全过程。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。