查询词典 X-unit

According to [2], we know that if X is a reflexive Banach space and T is a strongly continuous semigroup on X with the infinitesimal generator A, then the adjoint semigroup T~* is also a strongly continuous semigroup on X* and its infinitesimal generator is A~*, the ajoint operator of A.

由文献[2]我们知道，如果X是一自反Banach空间，那么X上强连续半群T的对偶半群T~*也是X~*上的强连续半群，并且其无穷小生成元为半群T的无穷小生成元的对偶。

Int returns the integer part of X; that is, X rounded toward zero. X is a real-type expression.

Int函数返回参数X的整数部分，X为实数类型，函数结果为X经过负向舍入(向0舍入)实数。

Int returns the integer part of X; that is, X rounded toward zero. X is a real-type expression_r_r.

Int函数返回参数X的整数部分，X为实数类型，函数结果为X经过负向舍入(向0舍入)实数。

Let X be a real linear space,P a family of separated seminorms on X and TP the locally convex separated topology on X generated by P.

设X是实线性空间，P是X上的一族分离半范数且Tp是X上由P生成的局部凸分离拓扑。

Results Metaphysis osteoporosis was observed on X-ray and CT in acute stage, the midsection of infarct of bone was isointensity on T1WI and iso/hyperintensity signal on T2WI, the edge of infarct of bone was ring-shaped hypointensity on T1WI and hyperintensity signal on T2WI. Small worm-eaten change and stippled calcification was observed on X-ray and CT in subacute stage, the infarct of bone was iso/hypointensity on T1WI and iso/hyperintensity signal on T2WI, the edge of infarct of bone was ring-shaped hypointensity on T1WI and hyperintensity signal on T2WI. Irregular and wriggle osteosclerosis was observed on X-ray and CT in chronic stage, was hypointensity on T1WI and T2WI.

结果 骨梗死急性期X线、CT表现为干骺端骨质疏松，MR T1WI骨梗死灶中央部分呈等至高信号，T2WI呈高信号，T1WI骨梗死灶边缘呈环形低信号，T2WI呈环形高信号；亚急性期X线、CT表现为小的虫噬样改变，伴有斑点状钙化，MR T1WI骨梗死灶呈等或低信号，T2WI呈等或稍高信号，T1WI骨梗死灶边缘呈环形低信号，T2WI呈环形高信号；慢性期X线、CT表现为不规则状、蜿蜒状骨质硬化，MR T1WI和T2WI均呈低信号。

A new method of high aspect ratio and resolution zoneplate fabrication using both electron beam lithography and X ray lithography technology is described The zoneplate, composed of 10μm thick Au with 30 zones and outest zone width of 0 5μm, can be used as a focusing and chromatic dispersion device for 0 1～1nm harder X rays Results show that the zoneplate has contrast of 10 and above, resolution of 0 55μm, and focus length of 21 3cm for 8keV X ray

介绍了利用电子束和 X射线束双曝光技术制作大高宽比高分辨率的 X射线聚焦或色散元件的新方法(波长范围为 1～ 5 nm )。所制做的厚度为 10μm的 Au波带片具有 30个波带，最外环的宽度为 0 。5μm。实验表明：对 8ke V的 X射线来说，波带片的衬度大于 10 ，分辨率为 0 。5 5μm，焦距为 2 1.3cm。

We now imagine the axis of the rod lying along the axis of x of the stationary system of co-ordinates, and that a uniform motion of parallel translation with velocity v along the axis of x in the direction of increasing x is then imparted to the rod.

我们现在想像杆子的轴沿著静止座标系统的 x 轴置放，然后一个以沿著 x 轴并且是 x 值渐增方向的速度v、平行移动的均匀运动施加到杆子上。

As shown in Fig. 1a, the colossal magneto-resistive oxide La2?2 x Sr1+2 x Mn2O7 ( x =0.36,0.38) shows a metal – insulator transition at a T C just below 130 K, at which point the system also switches from being a Ferro magnet to a Paramagnet.

就像图1a 所示那样庞磁电阻氧化物 La2-2 x Sr1+2 x Mn2O7 ( x =0.36，0.38)巧好在低于130K 的 Tc 温度下显示出金属-绝缘体转变现象，也就是在这个温度下，系统从铁磁相变成顺磁相。

The ends of the parison are at x=0 and x=2L,and there is symmetry about the plane x=L.

The末端原来在x = 0和x = 2L，并且关于第x飞机有对称性=通路

IN SPAIN SINCE 1992, WHICH IS A SPECIAL COMPANY TO BE SUCCEED IN DEVELOPPING THE SERIES OF PRODUCTS OF METAL CHINAWARE X RADIAL AND TO BE FIRST ONE TO MANUFACTUER INDUSTRIAL X RADIAL WOUND EXPLORING MACHINE. AND SCATHELESS EXPLORING EQUIPMENT, AND TAKE THE LEAD IN OPENING OUT XW SERIES OF FULL AUTOMATISM CONTROLLER OF X RADIAL WOUND EXPLORING MACHINE.

是国内最早成功研制金属陶瓷X射线管系列产品及中南地区最早生产工业X射线探伤机和无损检测器材的专业公司，并率先采用微机控制技术开发出XW系列全自动X射线探伤机控制器。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。