查询词典 manta ray

The camera length of electron diffraction in transmisson electron microscopy is one of the main technical parameters in designing electron microscope and the electron diffraction analysis to microcrystal sample. According to Bragg law, the formula of calculating TEM electron diffraction camera length is derived from the research on the ray path of electron diffraction images in TEM and the comparison on electron diffraction with ordinary electronic diffractometer. The difference of physical significance of electron diffraction camera length between TEM and ordinary electronic diffractometer is discussed.

透射式电子显微镜(Transmisson Electron Microcopy， TEM)中的电子衍射相机长度，是电子显微镜设计和对微晶体样品进行电子衍射分析的主要技术参数之一依据布拉格定律，经对TEM中电子衍射成像光路的探讨与研究，并通过TEM与普通电子衍射仪的电子衍射的对比分析，导出了TEM电子衍射相机长度的精确计算公式，阐述了TEM和普通电子衍射仪的电子衍射相机长度所表征的物理意义的区别。

The ray-path integrated growth is much smaller than that in electrojet conditions for the same values of driven electric field |ED| because the vertical component of group veloci...

在这一高度范围，波可能是不饱和的，增大L_N，使波在h=105km饱和的临界电场│E_D│值减小。上述计算结果可解释某些在反向电射流条件下，在Addis-Ababa观测到的10m波长雷达回波的特性。

Multibeam echo sounder, Sound ray tracing, GPS kinematic surveying technology, Sonar image, Data combination

多波束回声测深系统，声线跟踪， GPS 动态测量技术，声纳图像，数据融合

Public Security Bureau immediately after the police received a report arrived at the scene, according to the process of defusing the item detection and X-ray examination, confirmed that no explosion in the elements and the existence of suspicious circumstances, after careful observation, found in printed cartons "digital Dropsonde "and other words.

公安分局民警接报后立即赶到现场，按流程对该物品进行了排爆检测和X光检查，在确认无爆炸元素和可疑情况存在后，经仔细观察，发现纸盒上印有&数字式探空仪&等字样。

And ZH_5 [Ga(H_2O)CoW_(11)O_(39)]·xH_2OZ=Zn~(2+, Ni~(2+), Mn~(2+) by double decomposition, Which is so far un —reported yet, its characterrization by IR, UV, X—ray diffraction and DTA were studied.

用复分解法制备了未见文献报道的ZH_5[Ga(H_2O)CoW_(11)O_(39)]·xH_2OZ=Zn~(2+、Ni~(2+)、Mn~(2+)。研究了它们的红外、紫外、x—射线粉末衍射和差热性质。

FEMUR HEAD NECROSIS/diag. TOMOGRAPHY ; X-RAY COMPUTED

股骨头坏死／诊断；断层摄影术； X线计算机

The radioactivity variation of the shallow part of Yellow River delta with the natural gamma ray spectrum logging from 16 wells is studied.

通过16口浅层自然伽马能谱测井资料分析黄河三角洲浅层放射性的区域变化状况。

At 2:30 p.m., the last troops of Charlie Company arrived, along with the lead elements of Delta Company under Captain Ray Lefebvre.

在下午2：30，最后一只美军Charlie 连到达了，与Delta连一起由Ray Lefebvre上尉指挥。

De profundis. A horizontal ray of sunshine lightly touched the face of the sleeping Cosette, who lay with her mouth vaguely open, and had the air of an angel drinking in the light.

入土为安'。一线阳光横照在珂赛特的脸上，她还没有醒来，嘴微微张着，就象一个饮光的天使。

The X-ray average energy measured by the absorption method is 27. 6±2. 1keV,whlch is fitted within the error extent to 26. 0±2. 4keV monoenergetic Xrays

吸收法测出的X射线平均能量为（26.9±2.2）keV和NaI闪烁计数器测出的（26.0±2.4）keV单能X射线在测量误差内相符。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。