查询词典 x rays

Ionization only occurs with very high levels of electromagnetic energy such as X-rays and gamma rays.

高能量的电磁辐射可以电离生物组织，例如X射线和伽马射线，从而不可逆的破坏生物组织，包括人体的基因物质DNA。

The medical institutions at and above prefecture levels are equipped with medical facilities including 500-750 milliampere X-rays machines, Model B ultrasonic diagnose devices, fiber endoscopes, electroencephalographic devices, rheoencephalographic devices, heart monitors, lung function measuring equipment, and blood gas analyzers, and hospitals at county and township levels are equipped with basic medical facilities such as X-rays machines, multi-parameter monitors, microscopes, electrocardiogram machines and so on.

县和乡镇卫生院配有X光机、多参数监护仪、显微镜、心电图机等基本医疗设备，各级医疗机构服务水平与质量有了显著提高，为切实保障广大人民群众健康发挥了积极作用。

When Rontgen wrote an account of what he had discovered, he called these new rays X-rays, for X is a symbol often used for something which is not yet understood.

栾琴对他所发现的东西写了一篇报告，他称这些射线为X光，因为X常常用来做为尚未了解的东西的符号。

When Rontgen wrote an account of what he had discovered, he called these new rays X-rays, for X is a symbol oftenused for something which is not yet understood.

栾琴对他所发现的东西写了一篇报告，他称这些射线为X光，因为X常常用来做为尚未了解的东西的符号。

X-rays are used because they have the same wavelength as the atomic separations so the crystal acts as a molecular diffraction grating to diffract a beam of X-rays, producing a diffraction pattern that can be captured and analyzed.

之所以使用X射线是因为其波长和原子裂解时的波长一样，所以晶体作为分子衍射光栅衍射X射线，产生一种可以获取并分析的衍射图形。

X-rays are used because they have the same wavelength as the atomic separatio so the crystal acts as a molecular diffraction grating to diffract a beam of X-rays, producing a diffraction pattern that can be captured and analyzed.

之所以使用X射线是因为其波长和原子裂解时的波长一样，所以晶体作为分子衍射光栅衍射X射线，产生一种可以获取并分析的衍射图形。

Special contrast X-rays to evaluate the urethra and bladder for less dense stones that cannot be seen on plain X-rays and to identify tumors or anatomical abnormalities such as an outpouching of the bladder.

特殊对比的X光检查可以判断在尿道和膀胱里的少数结石（在普通的X光检查里可能发现不到），也可以判断肿瘤或结构上的异常，如膀胱的泌尿憩室

The dose enhancement effects and decreasing effects caused by material inhomogeneity were studied quantitatively with a parameter named Dose Perturbation Factor, which was the ratio of the dose at a point in the heterogeneous phantom to the dose of the same spatial location point in the homogeneous phantom. It was showed that the degrees of the dose enhancement or decreasing depended on the energy of radiation, field sizes of the beamlets and compositions of the media. The dose perturbation for high energy X rays is greater than that for low energy X rays. At the same energy condition, the dose perturbation decreased when the field size increased. And the relationship between them was not linear.

模拟结果表明：在小射野情况下，异质组织界面处出现了较大的剂量跃变，剂量扰动效应的强弱程度取决于射线的能量、射野的大小和模体介质的不同等多种因素，高能X射线条件下的剂量扰动效应大于低能X射线条件下的剂量扰动；在入射X射线能量相同的条件下，剂量扰动效应随射野尺寸的减小而增强，并呈现一种非线性关系。

Basing on the Monte-Carlo calculations of the detectors'responses to radiation and n/γdiscrimination ability, their radiation response properties are experimentally investigated on pulsedγrays, X rays from Z-pinch processes, n/X mixed radiation fields of the DPF neutron generator, electron beams of BEPC II Testing Beam Facility.

完成了探测器辐射响应、n/γ分辨能力的蒙特卡罗模拟计算，开展了探测器对脉冲γ射线、Z-pinch过程脉冲X射线、DPF装置脉冲中子/X射线混合场、BEPC II试验束装置脉冲电子束及国家串列加速器脉冲质子束的辐射响应实验研究。

1 Mg ml21 dissolved in air-saturated or gassed dilute buffer (e.g. 100 mM sodium phosphate buffer pH 7), were irradiated by X-rays (0-10 kGy) or UV-C light (0-100 kJ m22) at 258C, in the absence or presence of a.r.

样品在空气的饱和或稀释的毒气缓冲，是由X-rays照耀或在258CUV-C灯，在缺乏或存在a.r。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。