查询词典 barrier potential

Using STM, the change of the image contrast of local potential barrier is studied for different kinds of materials on the sample surface, and it is put forward to apply local potential barrier to view different surface materials.

利用STM研究了样品表面成分不同时局域势垒图象的衬度变化，提出了用局域隧道势垒观测表面不同材料的方法。

The potential barrier of the rate controlling step is 83.42 kJ/mol, which is higher than the potential barrier of channel A (20.80 kJ/mol).

通道 B 是新发现的反应通道，其速控步骤的位垒 83.42 kJ/mol，位垒高于通道 A(20.80 kJ/mol)。

Homogeneous or heterogeneous base material is selected; an alternately superimposed barrier layer and an alternately superimposed recessed layer are grown and formed at the extension of the base material; donor impurity and acceptor impurity are doped in the interface between the barrier layer and the recessed layer and in the interface between the recessed layer and the barrier layer, and the p type group III nitride material doped at a position selecting superlattice is obtained.

选择同质或者异质的基质材料；在基质材料上外延生长形成变换叠加的垒层和阱层，在垒层与阱层的界面和阱层与垒层的界面掺入施主杂质和受主杂质，得选择超晶格位置掺杂的p型III族氮化物材料，其中，每个生长周期的步骤为：生长带隙较宽的垒层，同时掺入受主杂质；生长施主杂质或受主杂质δ掺杂层；生长非掺的带隙较窄的阱层；生长受主杂质或施主杂质δ掺杂层；在N 2 气氛下对所得的选择超晶格位置掺杂的p型III族氮化物材料退火，即得目标产物。

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Inadequateness leads to thin artificial barrier, which cannot form a low permeable or impermeable artificial barrier, which just cause lower differential pressure, this cannot control the extension on the height effectively.Moreover, because the artificial barrier cannot achieve the function of the height controlled, finally make the projection less efficiency, even could be defeated comes to an end.

过少则人工隔层过薄，不能形成一个低渗透或不渗透的人工遮挡层，只能在裂缝垂直方向上形成较小的压降，从而不能更有效的遏制裂缝在纵向上延伸；另外，由于遮挡层起不到控制缝高的作用，降低了压裂效率，最终施工效果不明显，甚至会以失败告终。

Nevertheless, to his surprise, he finds he can not generate even one spark—That is because Master earth utilized the original first magic barrier plus the earth magic to create the magic-seal barrier; anyone in this barrier is unable to use the magic—Realizing this, Mo actually sneers again.

他一挥手，想以魔火攻击在他旁边的童氏族人，但他惊讶的发现，一丝火星也发不出来--这乃是因为土长老利用原有的第一层结界，加上土系法术做成了封法结界，任何人在此结界内，都无法施展法术--莫天想清楚这事后，居然又冷笑起来

Recently, in the international textile trade, green barrier of technical trade Barrier has gradually become a main non-tariff barrier.

随着国际经济一体化的发展和贸易自由化趋势的加深，关税、配额等传统的贸易壁垒不再是影响已经人世的中国国际贸易的主要因素。

Australia's tourist attractions the world's marine heritage, the Great Barrier Reef Great Barrier Reef Great Barrier Reef there are 400 kinds of live coral, color from the general blue, brown antlers to the complex, incredible pink and purple sea fan, is really a magical world of colorful blooming .

澳洲旅游景点世界海洋遗产大堡礁 Great Barrier Reef 大堡礁有四百种活的珊瑚，颜色从一般的蓝色、鹿角棕色到错综复杂、难以置信的粉红及紫海扇，简直是个五彩斑烂的神奇世界。

Additionally, while the barrier holds, or until up until the barrier final breaks, 20% of all spell damage taken is reverted to the caster of Ice Barrier's mana pool

寒冰护体结束后——持续时间到或者被打破，吸收伤害的20%将转化成释放寒冰护体者的魔法。

When they are arguing ,the bridemaids escort the birde to the contrary to cross the barrier.the second barrier is guarded by boys,and the third barrier is children of three or four years old.

正当&纠缠不休&时，伴娘们簇拥着新娘从另一头越过了路障。第二道路障，由一群男孩子阻拦。第三道路障是一些三四岁的娃娃。

Even in the good cause of conservation he was loud, bloody loud, in his unmodulated Strine. And he was naive in a wide-eyed, right-wing way, almost genuflecting to John Howard as he called him "the greatest leader in the entire world".

他就用他那不经修饰的土著嗓音大声呼吁着环保，从他的眼睛中，右翼行为方式，称澳大利亚总理约翰霍华德是"世界上最伟大的领袖"时那种尊敬中可以看出他的孩子气。

But their risk is attenuated.

但他们的风险被降低了。