查询词典 refracted ray

The diagnosis of OP is dependent on bone mineral density measured by dual energy X-ray absorptiometer which is used as a golden standard. But the body fat could interfere the measurement of BMD by DXA.

双能X线吸收测量法(dual energy X-ray absorptiometer，DXA)测量骨密度是诊断骨质疏松的金标准，但它的精确性受身体脂肪含量的影响。

Bone mineral density of whole femur were measured with a dual-energy x-ray absorptiometer. The three-point bending test was used to detect biomechanical properties of the femur.

用双能X线骨密度仪检测完整股骨骨密度，三点弯曲试验测试股骨生物力学性能。

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。

MethodsThirty-five GIO patients were enrolled. Ten milligrams alendronate were prescribed daily for 6 months. Bone mineral density was measured by dual-energy X-ray absorptiometer after and before the treatment.

以35例糖皮质激素性骨质疏松症患者为观察对象，每日服用阿仑膦酸钠10 mg，治疗6个月，治疗前后采用双能X线骨密度仪测定骨密度。

Compared with iodine, Gold has a larger atomic number and X-ray absorption coefficient.

金与碘相比，有着更高的原子序数和X射线吸收系数。

During the testing many kinds of advanced instrument were implied in study of the fiber's inner structure, the infrared absorption spectrum, x-ray diffraction curve, etc.

同时对纤维主要的物理机械性能与化学性能进行了系统的实验分析，以期对该纤维的形态特征、服用性能有较全面的掌握。

Based on the result of theoretical research the absorption coefficient curve of a substrate material has be ound,which ensure the three-channel BCCD work in the region of X-ray.

通过理论分析，找出了能保证BCCD在X光区工作的衬底材料所应满足的吸收曲线。

Ray attenuation law ; mass absorption coefficient ; mixture density ; measurement precision

射线衰减规律；质量吸收系数；混相密度；测量精度

It is suggested that pair production may play an important role in the X-ray emission region which is formed by the accretion of a compact object.

本文提出：在致密星的吸积所形成的 X 射线发射区中，电子对的产生起着重要的作用。

In this paper, the influences of acetanilide content on the microstructure and macro properties of polyvinyl chloride were studied by means of differential scanning calorimetry, wide angle X-ray diffraction and scanning electron microscope.

利用差示扫瞄量热法、广角X-射线衍射和扫瞄电镜方法研究了乙酰苯胺质量分数对聚氯乙烯的结晶度、微观形态和宏观机械性能的影响。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。