锥形

Objective: To determine the accuracy of volumetric analysis of teeth in vivo using cone beam computed tomography.

目的：研究锥形束计算机断层扫描(cone beam computerized tomography， CBCT)影像中分割提取正常牙齿体积的精度。

Based on the oscillator configuration of BFEL, a group of practical optical klystron parameters with a suitable beam energy spread has been put forward and the analyses of its saturation power, power spectrum, and tapered wiggler also have been made.

基于北京自由电子激光器的振荡器结构，提出一组对电子束要求适中的光学速调管参数，并对其饱和功率、功率谱、及锥形摇摆器进行研究。

Start by setting 6-8 cones up in a zig zag pattern so the cones allow 6-8 steps to be taken and form an approximate 90 degree angle to the next cone.

从在 z 型图案中做出6-8个转角开始，这些锥形允许6-8步并与下一个锥角形成一个接近90度的角。

Aseptically remove a sufficient quantity of solids from the appropriate amount of containers (see Table 2), mix to obtain a composite, equivalent to about 6 g of solids, and transfer to a sterile 500-mL conical flask.

以无菌操作从适当数量的容器中（见表2）取出足够数量的固体，混匀以获得等同于6g固体的混合物，转移至一个无菌的500mL锥形烧瓶。

The following contents have been studied comprehensively: the method of assimilable organic carbon measure; the biological stability of raw water in Yangtze Delta; the removal characteristics of AOC by purification technology and pr...

在熟练掌握和运用AOC生物修订法的基础上，对其进行了简化和改进，以100mL具塞玻璃锥形瓶代替45mL硅硼酸盐管形瓶，将测试水样量由40mL增加到100mL，将9个平行水样减少为6个，降低了AOC测定工作强度，有利于推广应用。

Results The endocrine cells found in the DT were round or oval, spindle, shuttle, pyramid, flask and bacilliform in shape.

结果蓝尾石龙子消化道中的内分泌细胞形态多样，呈圆形、椭圆形、纺锤形、梭形、锥形、烧瓶形和杆状。

Once all the blocks were in place, the Great Pyramid was capped with a triangular piece of granite, meant to represent the sacred Benben stone, symbol of the primordial mound, much like this one which was found at Giza, which may have been coated with a hammer-down layer of gold.

当所有石块都堆砌到位以后，再在金字塔顶上盖上一块三角锥形大理石，用这样的方式来显示埃及本本石的神圣，来象征原始土包。这与在&吉匝&所发现的顶部贴黄金的金字塔非常相似。

The biconic lens includes an external surface defined by two different curves disposed substantially orthogonal to one another, a major curve C1 and a minor curve C2, wherein C1 and C2 intersect at or near the optical axis.

双锥形透镜包括由两个分别为主要曲线C1和辅助曲线C2且在光轴或接近光轴的位置上C1和C2相交基本正交的不同曲线所限定的外表面。

Just prior to the analysis, prep a re the test solution by adding 0.5ml of the bromophenol blue indicator solution to each 100ml of the aqueous acetone solution and titrating with 0.01 N HCl or 0.01 N NaOH until the test solution is just yellow in color.

分析前准备好测试溶剂，100ml含2%水的丙酮加到锥形瓶中，加0.5ml 1%溴酚蓝水溶液指示剂，用0.01N NaOH溶液滴定至绿色或蓝色，然后用0.01N 盐酸标准溶液滴定至刚好呈黄色

For each subject, the buccolingual bone thickness was measured by postulating that the miniscrews would be inserted at 16 positions (10, 12, 14 and 16 mm above the median sagittal planes of the interradicular spaces between the first molars and the second premolars in the maxilla, and 30°, 45°, 60°, 90° from the cortical bone surface).

在重建后的锥形线束CT影像上测量上颌第二前磨牙与第一磨牙牙根间矢状面上距离参考平面10，12，14，16 mm的4个植入高度上，以与骨皮质表面成30°，45°，60°，90°的4个方向共16个部位的颊舌侧骨质厚度，计算各植入部位触及上颌窦的危险率，在骨厚度大于6 mm的植入部位模拟植入微螺钉种植体并测量其周围骨质密度。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。