体密度

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。

A calculation model of radiation heat transfer between the pressure tube and calandria tube of TACR, which is based on grey body radiation model and electronic network method, has been established.

本文以灰体辐射模型和电网络分析方法为基础建立了TACR压力管和排管间辐射换热的计算模型，利用该模型计算了给定温度边界和热流密度边界的情况下，压力管和排管间的辐射换热能力。

Methods Semen analyses were carried out according to the World Health Organization manual for 47 subfertile men,film preparation before and after centrifugate washing,then use HE dyeing,and assess the deformity ratio of sperm headbodytail and SDITZI.

47例人精液标本进行常规检测密度及活力后，分别在离心前后涂片，应用快速苏木素-伊红染色法进行染色，检测精子头部、体部、尾部畸形率。对比精子畸形指数和畸形精子指数是否受到离心洗涤的影响。

Methods Semen analyses were carried out according to the World Health Organization manual for 47 subfertile men,film preparation before and after centrifugate washing,then use HE dyeing,and assess the deformity ratio of sperm head,body,tail and SDI,TZI.

47例人精液标本进行常规检测密度及活力后，分别在离心前后涂片，应用快速苏木素-伊红染色法进行染色，检测精子头部、体部、尾部畸形率。对比精子畸形指数和畸形精子指数是否受到离心洗涤的影响。

The supernatant of the recombinant E. coli by sonication could not only repress the pigment synthesize of Chromobacterium violaceum ATCC 12472, but also could attenuate the intensity of bioluminescence of V. harveyi VIB391 and V. harveyi BB886 by 68% and 53%, respectively.

将表达的重组菌体经超声波破碎后，取其上清液作用于紫色色杆菌ATCC 12472，使其受密度感应系统控制的紫色色素的合成受到抑制；又用上清液分别作用于哈维氏弧菌的发光菌株VIB391和BB886，可使其发光强度分别减弱68%和53%。

The Triassic SI segment in the study area is a deltaic plain sediments, and because of inadequate exploration wells, it is difficult to figure out the river channel distribution and sand development characters.

研究区三叠系SI段为三角洲平原沉积，由于区块探井密度低，准确把握分流河道展布方向及砂体发育特征难度大。

Abstract］ One of the problems with the use of CVD techniques to densify the ceramic matrix reinforced by fibers is the difficulty in achieving complete infiltration.

摘要］ 使用CVD技术提高纤维增强陶瓷基复合材料的密度是很困难的，因为它很难使反应气体完全渗入到基体里面。

So the electrical conductive adhensive is costliness at the present market. On the other hand, the silver particles were easy sinking down in the polymer matrix because it's density are more bigger than the polymer matrix which made the transportation and preservation of the conductive adhensive being very discommodiousness.

一方面银粉的价格比较昂贵，一般都要添加质量分数为60%以上才能达到良好的导电性，因此目前市场上的导电胶价格很高，另一方面银粉与聚合物树脂密度相差很大，在聚合物基体中容易产生沉降，给导电胶的储存和运输带来极大的不便。

Mechanism of low density lipoprotein release in the endosome: implications of the stability and Ca2+ affinity of the fifth binding module of the LDL receptor.

低密度脂蛋白在内涵体中释放的机制：与 LDL 受体第五个结合组件的稳定性和 Ca2+亲和力相关

Low temperature ordering of FePt thin films has been achieved by using a thin equiatomic AuCu underlayer.

提出并利用相干生长的多层膜中有序－无序转变过程的彼此关联作用，借助AuCu缓冲层的低温有序化，降低FePt薄膜的有序转变温度200℃以上，为FePt薄膜的低温有序化开劈了一条新途径；制备多层膜，退火形成有序相FePt纳米颗粒分散在Ag基体的复合结构，比FePt/Ag共溅射或合金多层膜方法的退火温度明显降低；通过缓冲层Ta控制FePt的粗糙度和晶界密度，同时界面附近Ta、Pt发生化学反应，两者共同促进薄膜内Pt原子的有效迁移，从而加速FePt有序化；进一步，在Ta和FePt之间插入Bi薄层，强化Ta、Pt的扩散，在更低温度下形成高矫顽力的有序化FePt薄膜且FePt晶粒之间交换作用大大减弱；发现MgO薄膜作底层，可控制与MgO晶粒尺寸大致相当的临界厚度以下的FePt有序化薄膜的（001）取向，同时，MgO和FePt的相对厚度显著影响（001）取向FePt的有序化。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。