查询词典 gamma ray

Radiation from X ray also can affect the developing embryo and fetus ,with the most dangerouse time bing the first several weeks after conception,when women do not yet know they are pregnant .it is important for women and their physicians to weigh the risk of an X ray when an actual or potential pregnancy is involvel.

在有了胎儿这个概念的前几个星期，有很多危险的时刻，因为女人们还不知道他们已经怀孕。X射线对于女人和她们的身体有致命的危害。当然也包括胚胎和胎儿在内。

To accomplish this he designed a PEACE RAY which the media quickly dubbed a DEATH RAY.

为实现这一目标，他设计了一个和平射线媒介迅速称为死光。

Tesla also offered his invention to European countries, but none of the governments were interested. Consequently, the weapon, which the press called a "peace ray" or "death ray", was never built.

特斯拉也曾以上述发明干说欧洲国家，但各国政府都不感兴趣，结果这种新闻界称为「和平光」或「死光」的武器始终没有制成。

All the compounds are characterized by IR and elemental analysis.we design and prepare a bipyridinium supramolecular compound and six coordination compounds, which are also characterized by IR, elemental analysis and X-ray structure analysis. According to X-ray structure analysis, hydrogen bonds and n-n stocking interactions participate in the architecture of three-dimensional framework [H2L1 (NO3)2 (H2O)2]n; one-dimensional zigzag coordination polymer [Hgl21.5CH3OH]n; binuclear metallamacrocycle (HgI2L2)2 3H2O; helical double-stranded one-dimensional coordination polymer [Co2(L2)2-2CH3OH]n; double-stranded one-dimensional coordination polymer [Co2(L3)2-CH3OH-CH3CN]n; and three-dimensional compound [Cu(C5H4NCOO)2(H2O)2]-H2O with hydrogen bonds, three-dimensional coordination polymer {[Cd(C5H6NCOO)2H2O]-DMF}n, which are indirectly obtained from the precursor ligand L3 through metal ion induced the hydrolysis of diamide and self-assembled with the hydrolyzate.

我们首次合成了一个双吡啶鎓超分子化合物和六个过渡金属配合物，并通过IR谱，元素分析和X-ray晶体衍射分析对它们进行了表征。X-ray晶体结构分析表明：超分子化合物[H_2L1·(NO_3)_2·(H_2O)_2]_n是由多种氢键和芳香环间的π-π堆积作用构建的三维无限结构；[HgI_2(L1)·1.5CH_3OH]_n是一维锯齿状配位聚合物；(HgI_2L2)_2·3H_2O是双核金属大环化合物；[Co_2(L2)_2·2CH_3OH]_n是具有一维双螺旋结构的配位聚合物；[Co_2(L3)_2·CH_3OH·CH_3CN]_n为一维双链结构的配位聚合物；以及由非直线形配体L3在金属离子Cu和Cd的诱导作用下发生水解，并且金属离子与水解产物——异烟酸根离子自组装，形成了三维氢键超分子化合物[Cu(C_5H_4NCOO)_2(H_2O)_2]·H_2O和三维配位聚合物{[Cd(C_5H_6NCOO)_2H_2O]·DMF}_n。

The morphology, composition, diameter, size and size distribution, differential thermal and weight loss of MoS2 particles were measured by X-ray diffraction, transmission electron microscopy equipped with an energy-dispersive X-ray spectrometer, Zetasizer analyzer and differential thermal and thermogravimetric analysis in air.

用X-射线衍射、透射电子显微镜、能谱、粒度分析仪以及差热－热失重分析等分析手段，考察了产物粒子的形貌、成分、尺寸及尺寸分布、差热－热重的情况。

The changes in phase structure and Curie temperature of the Sm2Fe17 compound after nitrogen absorption were studied by using X-ray diffraction, differential thermal/thermo-gravimetric analyzer and magnetic measurement. The results of X-ray diffraction showed that the diffraction peaks of the Sm2Fe17 compound shifted toward lower angle after nitrogen absorption, and the characteristic peaks of α-Fe were observed. This showed that the unit cell of Sm2Fe17 expanded, the compound was decomposed to a certain extent and the characteristic peaks of α-Fe appeared.

通过X-射线衍射、差热－热重联用仪以及磁测量等手段，研究了Sm2Fe17化合物吸氮后的相结构及居里温度的变化行为。X-射线衍射表明，吸氮后Sm2Fe17化合物的衍射峰向小角度方向偏移，并且出现了α-Fe的衍射峰，这说明吸氮后化合物的晶胞有所膨胀，并且化合物有一定的分解，产生了α-Fe。

Microstrucfure of the powder samples achieved such as crystallographic structure, grain size, particle morphology, element analysis and thermal decomposition were characterized by means of X-ray diffraction, transmission electron microscopy, electron diffraction, energy dispersion X-ray spectroscopy and differential thermal analyzer etc.

结果表明，所制备的钠米镍粉、镍铜及镍铜硼复合粉呈颗粒均匀的球形或类球形，粒径在40nm～60nm之间。采用DTA方法对添加了纳米粉的高氯酸铵、AP／HTPB推进剂热分解情况进行表征。

The microstructures and optical properties of the films were characterized with X-ray diffraction, small angle X-ray reflection, and ultraviolet visible absorption spectroscopy.

通过直流反应磁控溅射的方法制备了氧化铅薄膜，并通过XRD和紫外－可见光吸收谱对薄膜的晶体结构和光学性能进行了表征。

Ray height and ray width can be used for diagnostic or subsidiary diagnostic features to distinguish S. ovata from other Sonneratia species.

结果表明1。射线高度和射线宽度可作为卵叶海桑区别于其它种类的鉴定特征或辅助特征；2。

The Double Eagle brand products are exported through Beijing, Shanghai, Guangzhou, Jiangsu ,Shandong etc. Main products: a series of x-ray protected products, a series of x-ray protected device products; one-off medical plastic instrument mutilated machine, vertebrae tractor, medical bed style air cushion, medical oxygen bag, medical air cushion, food tractor etc. The medical instruments are sold all over the country.

公司生产的双鹰牌防护系列产品通过北京、上海、广州、江苏、山东等外贸批量出口，打入国际市场，主要产品有：X射线防护铅胶系列产品；X射线防护装置系列产品；一次性医用塑料器具毁形机、柔软型颈椎牵引器、医用床式气垫、医用氧气袋、医用气垫、脚踏吸引器等医疗器械产品，产品畅销全国各地。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"