查询词典 penumbra

Interestingly, the hsp70 message is only patchily induced within the ischemic core but is markedly induced in neurons of the penumbra at 4 to 24 hour s.

有趣的是，hsp70信息在缺血核心部位仅是被不规则地导入了，却在4到24小时内明显地被导入了半暗带的神经元。

The ischemic penumbra is defined as peri-infarct tissue that is functionally impaired but structurally intact and remains potentially salvageable.

中文摘要&缺血性半影&的定义为梗塞周围的组织，虽然功能已受损，但是结构仍完整，且具有潜在地可以被抢救回来的可能性。

The ischemic penumbra of the brain has been considered to be dynamic, changeable and savable because of its reversibility of impairment.

缺血边缘区脑组织由于具有向不可逆损伤和可逆损伤双向发展的趋势，在理论上被认为是动态的、可变的、可挽救的脑组织。

Objective To explore the value of diffusion weighed imaging and perfusion weighted imaging in the diagnosis of the ischemic penumbra of superacute infarction.

目的探讨磁共振扩散加权成像和灌注加权成像对早期脑梗死缺血半暗带的诊断价值。方法新西兰大白兔35只，实验组28只，对照组7只。

The stratification shows, as expected, that for this 8 sunspot, its stratification of the vectormagnetic fields has the main features of this kind: one umbra with positive polarity and the other with negative polarity; and the magnetic field vectors in the penumbra part between the two umbrae are more horizontal than those in the umbrae.

反演得到的δ型黑子的矢量磁场两层结构拥有δ型黑子的主要特征，两个黑子本影磁场极性相反，且本影之间的半影磁场的磁倾角很大，也就是在半影中磁力线几乎水平分布。

The stratification shows, as expected, that for this 8 sunspot, its stratification of the vector magnetic fields has the main features of this kind: one umbra with positive polarity and the other with negative polarity; and the magnetic field vectors in the penumbra part between the two umbrae are more horizontal than those in the umbrae.

反演得到的δ型黑子的矢量磁场两层结构拥有δ型黑子的主要特征，两个黑子本影磁场极性相反，且本影之间的半影磁场的磁倾角很大，也就是在半影中磁力线几乎水平分布。

These results suggest that nimodipine in addition to its cerebral vasodilating effect may protect brain from ischemic neuronal damage through modifying iNOS expression in the infarct area, and imply that 〓 may be involved in the iNOS expression in ischemic brain tissue which contributes to the recruitment of penumbra into infarction after transient focal cerebral ischemia.

上述结果表明，除了扩张脑血管外，尼莫地平可能还通过抑制iNOS在缺血性脑组织的表达阻止NO过量产生而起到脑缺血损伤的保护作用。鉴于尼莫地平是典型的钙拮抗剂，本结果还提示〓可能涉及缺血脑组织的iNOS表达，从而介入半暗区向梗死区转变的病理过程。

The emergence of politics as a career choice has been made possible, argues Peter Oborne in his book "The Triumph of the Political Class", by a penumbra of quasi-political institutions—think-tanks, consultancies, lobbying firms, politicians' back offices.

正如Peter Oborne在他的书《成功的政治课堂》中所说的一样，政治作为一个职业生涯的出现已经成为可能，并且可以通过半影的准政治机构——智囊团，游说公司，政客后备办公室等来实现。

The emergence of politics as a career choice has been made possible, argues Peter Oborne in his book "The Triumph of the Political Class", by a penumbra of quasi-political institutions—think-tanks, consultancies, lobbying firms, politicians' back offices.

皮特？奥斯伯恩在其著述的《政治阶级的胜利》一书中认为各式各样的准政治机构——例如智库、咨询机构、游说公司、政客们的后勤办公室——使得政治作为一种职业选择的兴起成为可能。

According to the requirements of precision conformal dose delivery, the side focused and tongue-groove structure of multi-leaf collimator is determined, and genetic algorithm is utilized to optimize the leaf end shape, which results in the improvement of penumbra size and uniformity.

根据剂量精确适形的要求，确定了多叶组合光栅侧面的聚焦和榫槽结构，使用遗传算法对叶片端面形状进行了优化设计，使端面产生的半影大小和一致性得以改善。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？