查询词典 x-axis

If R admits a generalized derivation δ with d=0 such that either δ=x°y or δ+x°y=0 holds for all x,y∈I,and if δ is not the identity map,then R is commutative.

设R是素环，I是R的非零理想，如果R容许一个非单位映射的左乘子使得对所有x，y∈I满足δ=x°y或δ+x°y=0，那么R可交换。

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。

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。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。