当...时

MARIA SHARAPOVA: No, I'm naturally a lefty so when I run to that side, when I feel that I can't get it with two hands, I just hit it with one.Q. You're a natural lefthander?

SHARAPOVA：不，当因此我跑向那边时，我自然是一名左撇子的人，当我感到我不能用两只手得到它时，我刚刚用一撞击它。

Therefore, the EL spectra of (Znq_2)_4 is wider than that of Znq_2. 4._2 was synthesized. The analysis of molecular spatial structure and the characterization of material performance of_2 and Liq showed that two Liq molecules and two Naq molecules were connected by Na-O-Na bond bridges to form_2. Compared with Liq,_2 exhibits stronger rigidity in planar molecular structure, larger steric hindrance and intermolecular distance, and much smaller molecular polarity, thus resulting in much longer fluorescence lifetime, much higher fluorescence quantum efficiency, wider energy bandgap and better film formability. When used as light-emitting layer in OLED,_2 shows lower formation probability of excited dimmer and exciplex formation than Liq, thus emits bluer light with higher current efficiency than Liq. When_2 ultrathin film is used as electron injection layer in OLED, it exhibits higher current density, higher luminance, lower turn-on voltage and higher current efficiency than Liq ultrathin film for the existence of sodium ions in_2 ultrathin film. 5. The summarization the relationship between molecular spatial structure and material performance of Alq_3,(Znq_2) and Liq, lead the conclusion that the molecular spatial structure of Mq_n affects its material performance in such aspects as the rigidity of planar molecular structure, intermolecular interaction, molecule stacking mode and intermolecular distance.

制备了_2，通过对_2和Liq的分子空间结构与性能进行分析与讨论，发现_2是通过两个Na-O-Na键桥将两个Liq和两个Naq连接构成的，其分子平面结构的刚性程度强于Liq，空间位阻大于Liq，分子之间的距离大于Liq，分子极性远远小于Liq；_2的荧光寿命长于Liq，荧光量子效率高于Liq，成膜性优于Liq；_2的禁带宽度比Liq大，光致发光光谱中_2的最大发射峰较Liq发生蓝移；当_2在OLED中作为发光层时，激发二聚体与激基复合物的生成几率远远小于Liq，发的光比Liq更蓝，电流效率大于Liq；_2超薄膜中有Na离子的存在，与Liq超薄膜相比，当其在OLED中作为电子注入层时，具有更大的电流密度，更高的发光强度，更低的阈值电压和更高的电流效率 5、对上述Alq_3、Znq_2和Liq的分子空间结构与材料性能之间的关系进行了归纳总结，认为Mq_n的分子空间结构主要在分子平面结构的刚性程度，相邻分子之间的相互作用，分子堆叠的方式和分子之间的距离这四个方面影响其性能。

The air purifier is positionable in one of a vertical operating orientation when the weight of the housing is supported by the base and a horizontal operating orientation when the weight of the housing is supported by one of the sides of the housing.

当外壳的重量由基座所支撑时，空气清洁器位于一个垂直操作方向上，而当外壳的重量由外壳的多个侧面中的一个侧面支撑时，空气清洁器位于一个水平操作方向上。

When heard that Shane has baby, I'm so happy for him. When heard that her baby called Nicole also, How exciting I am! The baby's name is the same as mine. It is hit-and-miss so!!

当知道shane有小孩时，也是很替他高兴呀，当听到他的女儿也叫Nicole时，多么的激动，居然和我的名字是一样的，好巧，哈哈！！

When hexanoic acid and heavy metal ions coexist in the solution,the adsorption of metal ions by clay tends to decrease because of the competitive adsorption of hexanoic acid.

当溶液中己酸和重金属共存时，由于竞争吸附使得粘土对重金属的吸附能力普遍有较小幅度的下降；当溶液中存在腐殖酸和重金属共存时，粘土对重金属的吸附能力增强，主要是由于酸性条件下富里酸发生解离后与重金属络合，其络合物与粘土颗粒有一定的结合能力，增强了粘土对重金属的吸附能力。

The effects of initial electron density Ni and laser pulse width τ on damage threshold fluence Fth were analyzed respectively.

研究结果表明，对应于一定的脉宽，存在一个临界初始电子密度，当Ni低于这一临界密度时，Fth不受Ni影响；当Ni高于临界密度时，Fth随Ni增加而降低。

The effects of initial electron density Ni and laser pulse width τ on damage threshold fluence Fth were analyzed respectively. Both the nature of multi-photon ionization and the role of avalanche ionization were also discussed.

研究结果表明，对应于一定的脉宽，存在一个临界初始电子密度，当Ni低于这一临界密度时，Fth不受Ni影响；当Ni高于临界密度时，Fth随Ni增加而降低。

They are your rallying points: to build courage when courage seems to fail; to regain faith when there seems to be little cause for faith; to create hope when hope becomes forlorn.

它们是您振奋精华的起点；当您似乎丧失勇气时由此鼓起勇气；似乎没有利用相信时重建信念；当信心快要失去的时候，由此产生希望。

World of sin.when all glory fades,all magnificent images fall apart,when hope becomes forlorn,when every dream is crushed into pieces,when there seems to have no reason for one to go on his life outrageously

是的，在我的那些最黑暗的日子里，当我游荡在失望的谷底时，当绝望令人窒息时，上帝和 William Faulkner 的话语是照亮我眼睛的第一线曙光。

When I tell my Chinese acquaintances that I have a daughter and a son, they reply that I am lucky because I have the perfect family. When I add that they are my stepchildren, some people are surprised that I would agree to bring up someone else's children; others wonder what problems exist in such a relationship; most ask if I wish I had children who were'really' mine.

当我告诉我的中国朋友我有一儿一女时，他们都说我很幸运，因为我有一个完美的家庭，当我又加上一句他们是我妻子与前夫的孩子时，有人就对我愿意抚育别人的孩子表示吃惊，还有人想知道在我们的关系中存在什么问题，多数都问我是否希望要一个亲生的孩子。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。