查询词典 barrier

The Meccan seige occurred in 627, but the Meccans withdrew after around two weeks, primarily because they could not penetrate a barrier of a trench dug by the Muslims that was based on a suggestion of Salman the Persian.

该Meccan围困发生在627 ，但Meccans退席后约两周，主要是因为他们无法穿透屏障的战壕挖的是穆斯林的基础上建议萨勒曼波斯。

A barrier of meshwork cord or rope strung between two posts to ''.'divide'.

球网连在两个界柱之间平分一个球场的绳索的网状屏障。

A ball that is hit into this meshwork barrier.

在足球中以手触球就是犯规。

Our double-potential well model explains the fact that the grain size affects the barrier height and therefore changes the relaxation characteristics and the structural metastability.

我们利用双势阱模型解释了这样一个事实：晶粒尺寸影响了势垒高度，这样改变了弛豫特征和结构亚稳性。

In this study, development of methanol barrier conducting membranes was attempted.

本论文在新型阻醇导电膜材料方面进行了新的尝试。

Brain reperfusion injury blood-brain barrier microcopy, electron, transmission

脑 再灌注损伤血脑屏障显微镜检查，电子，透射

When Ts is 850 ℃,grains are fined and the size of βphase and the distance betweenβphase pasticles are small.The corrosion barrier effect ofβ phase onαphase is enhanced and the iron content does not increase much at this temperature.So the corrosion resistance is improved.The corrosion resistance of AZ70 alloy falls off when Ts is 890 ℃,which attributes to the presence of microporosity,hot cracking and increase of iron content.

过热温度为810 ℃时，热速处理对合金耐腐蚀性能的改善作用并不大；过热温度为850 ℃时，热速处理显著细化了合金晶粒，β相的尺寸和间距变小，β相对α相腐蚀的阻碍作用增加，而且合金中的铁含量并没有提高，从而改善了合金在试验条件下的耐腐蚀性能；过热温度为890 ℃时，组织中存在热裂纹和显微疏松缺陷，合金含铁量显著增高，合金的耐腐蚀性能下降。

Different from the most of antioxidants, its activation factor microsome is one in five thousand of human blood cells and it can go through the blood-brain barrier, playing a role to protect the brain and the blood vessels from the radical damage increased with age.

它与其它抗氧化剂不同，它的活化因数微粒是人体血球的五千分之一，可以穿越血脑屏障，起到保护血管和大脑免受随年龄增长而增多的自由基的破坏。

However, the common GBE is microsome, which has difficulty in crossing the brain blood barrier because of big molecule diameter.

但普通GBE 药物颗粒直径较大，为大分子药物，较难穿透血脑屏障，其主要成分为黄酮类和内酯类化合物，易溶于有机溶剂，不能溶于水所以大大限制了其在临床上的应用。

The structural modulability and chemical stability of hydrogenated amorphous Silicon Carbide a-Si_xC_(1-x:H films makes it suitable as a barrier layer for low K porous dielectric films.

非晶碳化硅薄膜的结构可调制性及化学稳定性使其成为Cu/超低k多孔介电薄膜结构的扩散阻挡层优异候选材料。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。