质子

Unlike X-rays, the standard radiotherapeutic tool, a proton beam can be tuned in a way that causes it to dump its destructive energy at a particular depth beneath the skin.

不同于X射线这种标准的放射治疗手段，质子束的强度是可以调节的，，它可以在皮下一个特定的深度集中释放具有杀伤力的能量。

Unlike X-rays, the standard radiotherapeutic tool, a proton beam can be tuned in a way that causes it to dump its destructive energy at a particular depth beneath the skin. This means it can destroy a tumour without damaging other tissue.

与标准的放射治疗手段—— X 射线不同，质子射线的强度是可以调节的，待进入皮下特定的深度之后才一次性释放杀伤性能量，这说明它可以在破坏肿瘤的同时不会造成其他组织的损伤。

Resultant energetic particles such as electrons and protons rain down near the Earth's poles and impact the air. The impacted air molecules temporarily lose electrons, and when oxygen molecules among them reacquire these electrons, they emit green light.

极光是由来自太阳的高能粒子冲撞地球的磁场所触发的；其结果是高能量的电子和质子在地球的极区附近撞击大气，让被撞击的空气分子短暂失去电子，如果是氧分子重新得回这些电子，就会发出绿光。

Resultant energetic particles such as electrons andprotons rain down near the Earth's poles and impact the air. Theimpacted air molecules temporarily lose electrons, and when oxygenmolecules among them reacquire these electrons, they emit green light.

极光是由来自太阳的高能粒子冲撞地球的磁场所触发的；其结果是高能量的电子和质子在地球的极区附近撞击大气，让被撞击的空气分子短暂失去电子，如果是氧分子重新得回这些电子，就会发出绿光。

This study is a new effort to meet the great need of preparing alcohol rejective proton exchange membranes.

本论文正是以此为背景，旨在开发高性能阻醇质子导电膜方面进行一些新的探索和尝试。

It follows that the de-protonic reaction of hydroxide group for PVA had taken place in above solution, and the coordination group for deprotonic oxygen of PVA had produced more. These ligands interact with some Fe3+ of ferric hydroxide while the ferric hydroxide in new emergence is forming,causing the formation of Fe-PVA coordination polymer-the composition of the reddish brown resinoid substance.

推定PVA部分羟基在上述条件下发生脱质子反应而提供L-配位体，Fe盐水解生成初生Fe3的Fe3+，它既有空轨道，又有较强的正电场，故能吸引PVA高分子配位体L-上的氧而形成O→Fe配位键，从而发生L-与Fe3+离子间的交联反应，生成多核Fe-PVA配位聚合物而析出红棕色树胶状物。

This is the vintage 1984 Marantz turntable with Shure V15-III cartridge and the Proton DP1200 amplifier.

这是1984年经典马兰士转台与舒尔V15 -三墨盒和质子DP1200放大器。

The 1HMRS indexes at genu and splenium of corpus callosum, and basal ganglia could serve as effective indexes for the diagnosis of DAI.

胼胝体膝部、压部和基底核各氢质子MR波谱指标可作为弥漫性轴索损伤有效的诊断指标。

The quantum mechanical calculation results suggested that the energetics of stereochemical control during the tricyclic Markovnikov cation deprotonation step could be affected by the inclusion of these enzymatic effects.

而量子力学的计算结果显示出酵素催化反应里所产生的种种效应都对在三环马可尼可夫碳阳离子的去质子化步骤中立体化学特性有重大影响。

The stereochemical structures of two new compounds, 5-(3-chlorophenyl)-2-furfur-aldehyde-N-4-methylphenyloxyacetylhydrazone and 5-(3-chlorophenyl)-2-furfuraldehyde-N-4-nitrophenyloxyacetylhydrazone, were determined by DPFGSE-NOE experiments performed in DMSO-d\-6 at 25 ℃ and variable-temperature ~1H NMR The ~1H chemical shifts of the compounds were completely assigned at 25 ℃ and 90

利用变温实验和DPFGSE NOE实验，确定了 5 (3 氯苯基) 2 呋喃甲醛 N 4 甲基苯氧乙酰腙和5 (3 氯苯基) 2 呋喃甲醛 N 4 硝基苯氧乙酰腙两个新化合物25 ℃时在二甲基亚砜中的空间构型，并对这两个新化合物在 25 ℃和 90 ℃时的质子的化学位移进行了全归属。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。