双线的

Methods Two hundred and ninety seven middle-aged and aged females were sampled randomly from the cases who were examined in the bone mineral density measurement department of The Second Affiliated Hospital of Nanchang University from January 2004 to January 2006, and their age, stature and body weight were recorded exactly. The BMD of lumbar (L2~4), femoral neck, Ward's and great trochanter was measured by dual energy X-ray absorptiometer, then statistically analyzed.

从2004年1月～2006年1月在南昌大学第二附属医院骨密度测定室检测的就诊者中随机抽取297例中老年妇女，准确记录其年龄、身高、体重；采用法国DMS公司Challenge：双能X线骨密度测定仪检测腰椎(L2~4)、股骨颈、ward's三角以及大转子的BMD，然后进行比较和统计分析。

For this bilinear system, the optimal trajectorytracking method is used to suppress the decoherence effects brought by the environ-mental noises.

针对这个双线性系统，采用最优轨线跟踪的方法抑制环境噪声的影响。

In order to clearly understand the nature of exchange bias of the FM/AFMbilayers, we first discuss the influence of the biquadratic coupling field on both thehysteresis loops and the dependence of exchange bias field on the applied magneticfield angle.

为了更加清楚地认识铁磁／反铁磁双层膜中交换偏置的本质，我们首先研究了双层膜界面中双二次耦合对磁滞回线和交换偏置场随外磁场角度变化曲线的影响。

You can choose traditional lines, candlestick, and two-column type charts.

你可以选择传统的折线、K线、和双柱形的图表。

In these 46 cases ,there were 41 cases attacked with osteonecrosis of both femoral head for 3 to 6 months. There were 43 cases without any clinical symptom. The X-ray examination of these 46 cases were normal while the MRI examination were abnormal obviously ,among them ,include 7 cases with osteonecrosis of the thigh and knee and 3 cases with osteonecrosis of humeral head the caput humeus. The blood plasma lipid examination was abnormal.

在确诊的病例中，41 例3～6 个月内双侧发病；43 例患者没有明显临床症状；所有病例普通X 线均无异常表现而MRI都有明显异常表现；有7 例伴有同侧股骨干和髌骨坏死，3 例肱骨头出现坏死；血浆脂质出现不同程度的异常变化。

Utilizing the tools of conformal mapping and Cauchy integral formula and so on, the SIFs at the crack tips are obtained, which can be reduced to the known results under the condition of limitation; For the third and the fourth section, the problems of arc crack and parabolic crack are researched in one dimensional hexagonal QCs.

第二节研究了一维六方准晶狭长体中双半无限共线裂纹问题，利用保角变换以及Cauchy积分公式等工具求得了裂尖处的应力强度因子，在极限的情况下可以还原为若干已有的结果。

Coaxial cable has its main transmission medium, but most of the new installation uses the twisted pair.

同轴电缆曾是它主要的传输介质，但现在大多数新的安装使用了双绞线。

Tensile capabilities of two absorbable suture s to sew incision concrescence rat skin were also tested.

进行了双轴工具显微镜的技术改造，使之具有微型电子万能试验机的基本功能，并实施了两种可吸收缝合线缝合白鼠皮愈合抗拉性能测试。

The tore equipment of Two-For-one Twisterfor Filament,which can wind different forms semifinished yarn into double- cone bobbin yarn.

本机用于将原不同形状丝还络成具有一定规格的双锥型筒丝，供各种国产及进口倍捻机丝用，本机是倍捻机及捻线机必备的前道配套设备。

Achromatic doublets are far superior to simple lenses because they are corrected for two color lines, specifically C 656.27nm and F 486.13nm.

消色差双合透镜的优势远远超过简单的透镜，因为有两条色彩线，特别是C 656.27nm和F 486.13nm。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。