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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。

Note that for the lunar rigidities μ≈5 X 1010 dynes/cm2 and λ/μ=1.25, approximately 4 x 1035 ergs are stored in the bodies.

下图中，月球的刚性系数μ约为5 X 10的10次方（5 X 1010 ）达因/平方厘米，而λ/μ= 1.25，能存储大约4X10的35次方尔格（4 x 1035）的能量。

By setting different kinds of filters of various thickness values before the pinholes of camera and using the spectral sensitivity of the camera,multi-frame X-ray images of wire arrays Z-pinch implosions in different energy ranges were obtained. By analysing the relationship between the intensity profiles of corresponding frames and the spectral sensitivity of the camera,it is allowed to estimate X-ray photon energy range in local areas of images.

通过对皮秒分幅相机和2.3μm厚formvar膜滤片的光谱响应特性分析，以及对同一时刻粘贴2.3μm厚formvar膜滤片和未粘贴2.3μm厚formvar膜滤片两幅图像径向辐射强度波形的对比，确定出获取的X光辐射图像的能谱范围：不加formvar膜滤片的X光辐射图像光子能量大于70eV，加formvar膜滤片的X光辐射图像光子能量大于150eV，同时还确定出图像各部分的光子能量分布。

Results Of the 21 cases,the KUB findings showed bowel dilatation with air in 21 cases and lower intestinal obstruction in 16 cases;the barium enema X ray showed typical X ray features （in spasm segment,and dilatation segment） in 18 cases and atypical X ray features in 3 cases as limited incisures in inferior rectum,and found barium retention in the following up of 24 hours.

结果 21例腹部平片均表现为肠腔充气扩张，其中有16例低位结肠梗阻；钡灌肠检查18例见典型X线征象：痉挛段，移行段，扩张段；3例不典型X线征象：直肠下段局限性切迹，24h随访均有钡剂潴留。

The use of an X at the end of a letter to signify a koss goes back to the Middle Ages,when an illiterate person signed his or her name to marked documents and contracts with an X (which in church lore stands for Christ)and kissed the mark in the pressence of witnesses to affirm his or her sincerity .

在信的末尾用X代表吻，这一做法可追溯到中世纪。那时候，不识字的人用X在文件或合同上签名，并且当着证人们的面吻这个记号以表明自己的诚挚。吻和X这个十字形符号变成了同义词。

Ontinues each kind of game character outsourcing manufacture, the members have the rich manufacture experience, once had manufactured the many patterns large-scale game in various macrocosms famous game company, involves to each kind of platform for example: Splinter Cell 4-Double Agent (UBISOFT The X-BOX360 platform / Splinter Cell 4-Double Agent / Brothers In Arms2 (UBISOFT The PS2 platform)/ Brothers In Arms / Ghost Recon 2 / RYMAN / END WAR (UBISOFT X-BOX360)/?M2 / Iron Phoenix (IS The X-BOX platform)/ Zill O'll infinite (KOEI The PS2 platform) and so on.

承接各类游戏角色外包制作，其成员都拥有丰富的制作经验，曾在各大世界著名游戏公司制作过多款大型游戏，其中涉及到各种平台（如：《细胞分裂4-双重间谍》（UBISOFT X-BOX360平台）、《细胞分裂4-双重间谍》（UBISOFT PC平台）、《兄弟连》（UBISOFT PS2平台）、《兄弟连》（UBISOFT PSP平台）、《幽灵行动》、《雷曼》、《最终之战》（UBISOFT X-BOX360）、《神甲骑兵》、《流星蝴蝶剑2》、《龙士传说》（日本光荣 PS2平台）等。

Tz = 2Gk q 即 z = 2Gk q /T 40 Suppose the volume between membrane and the boundary plane is V, and we notice that 2 ∫∫ d x d y = M Then we have Thereby we have q qM V =∫∫ zdxdy =∫∫ dxdy = 2GTk 4GTk M 2 Gk = 2V q /T From τ zx =τ xz =, y z 2Gk τ zx /= y q / T τ z y =τ yz = x 41 Moreover, we get 设薄膜及其边界平面之间的体积为V,并注意到 2 ∫∫ d x d y = M 则有从而有由又可得 q qM V =∫∫ zdxdy =∫∫ dxdy = 2GTk 4GTk M 2 Gk = 2V q /T τ zx =τ xz =, y z 2Gk τ zx /= y q / T τ z y =τ yz = x 42 Adjust the pressure q of which the membrane is under, and make the rights of formulas,, equal to one, then we can gain some conclusions as follows:(1) The stress function of wringed pole equals to the uprightness angle of the membrane (2) The torsion M which wringed pole received equals to two times of the volume between the membrane and the boundary plane.

o b y a x 43 调整薄膜所受的压力q，使得，，三式等号的右边为1，则可得出如下结论：(1)扭杆的应力函数等于薄膜的垂度z。(2)扭杆所受的扭矩M等于该薄膜及其边界平面之间的体积的两倍。

Woodchucks . The HBV genome has four genes: pol, env, pre-core and X that respectively encode the viral DNA-polymerase, envelope protein, pre-core protein (which is processed to viral capsid) and protein X. The function of protein X is not clear but it may be involved in the activation of host cell genes and the development of cancer.

乙型肝炎病毒基因组有四个基因：波兰，环境，前核心和X ，分别编码病毒DNA聚合酶，包膜蛋白，前核心蛋白和蛋白质十大功能蛋白X是尚不清楚，但它可能参与激活宿主细胞的基因和癌的发展。

8KeV Cu target X-ray tube source was used in x-ray imaging experiments and the magnification of 1× and 2× X-ray images are obtained.

使用Cu靶X射线管进行了成像实验，得到了放大倍数分别为1倍和2倍的一维X射线像。

As the inserting angle increases, the reinforced efficiency of the unit volume fraction of the pins to the intensity and modulus of the X-...

随着植入角的增加，单位体积分数的Pin对X-cor夹层结构的强度和模量的增强效率均提高；不同直径Pin对X-cor夹层结构影响不同，大直径Pin对X-cor夹层结构强度增强效率高；小直径Pin对X-cor夹层结构模量增强效率高。

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。