当...时

We show that the solutions for the HARA utility are stable in the sense of weak convergence when the parameters vary in a suitable way.

当效用函数为HARA、指数和对数型时，我们分别得到了最优投资的显式解，并且证明了当HARA效用函数中的参数变化时所对应的最优策略在弱收敛意义下的稳定性。

In cases where a third planet lies at the midpoint of the first two we just considered, a "planetary picture" is formed. On page 54 of the German anthology "Man: A Receiving Station of Cosmic Influences", Alfred Witte wrote: A planetary picture is formed by three planets when one of them is located at the midpoint of the other two.

在一些例子里面，当第三颗行星正好落在两颗行星的中点上时，我们认为行星的图像已经形成了，在德国人的占星学书籍里面写到"人：宇宙影响力的接收站"怀特写到当一颗行星落在另外两颗行星的中点上时，三颗行星形成了一个行星图像。

But racing to the rescue, when the map showed Sirius Black dragging Ron and Peter into the Whomping Willow with Hermione and Harry in pursuit, Remus had forgotten the Wolfsbane Potion, so that when he later transformed he was subject to uncontrolled dementia.

但之前，当莱姆斯看到活点地图显示小天狼星布莱克拖着罗恩和彼特进入打人柳，赫敏和哈利紧追而去时，为了赶紧去援救，他忘记了服用 Wolfsbane药剂（还是因为囚徒不在手边，请帮忙核对，就是斯内普调的那种对付狼人的药剂）。因此，当后来变身时，他受支配于无法控制的疯狂。

Xerophyte shrub species could affect interception loss. For the Artemisia ordosica community with an average cover of 34 and the canopy projection of 39 cm×100 cm, the canopy storage capacity is 0.7 mm, and average interception loss is 26.82% of the total annual precipitation. In cont rast, for the Caragana korshinskii community with an average cover of 30 % and the canopy projection of 40.7 cm×100 cm , the canopy storage capacity is 013 mm , and average interception loss is 17 % of the total annual precipitation.

结果表明，不同灌木类型的群落之间对降水截留的影响存在显著差别，对盖度达34%的油蒿群落而言，当单株植物投影面积平均为3900cm2时，其冠层截留容量约为0 7mm，群落截留损失水量平均占年降水量的26 8%；而盖度达30%的柠条群落，当单株植物投影面积平均为4070cm2时，其冠层截留容量约为0 3mm，群落截留损失水量平均占年降水量的17%。

This res ult provides the theoretical basis for the system of zero order release as well as how to control the release rate and the amount of drug release.

根据该模型还从理论上分析了两种限定条件下药物的释放特征：当DmDf时，释放速率变为常数，达到零级释放，其释放速率与药膜无关，这为零级释放缓释体系如何控制释放速率和药物释放量提供了理论依据：当Dm Df时，药物的释放速率与药膜中的释放系数、溶解度和药物的装填量有关，与包膜过程无关，其释放过程类似于混合药膜缓释体系。

The years rolled on, when we become more and more philistine and non-romantic, we only could have nice memories of first love, and the testimony of sweet love – a hand-made Valentine's Achillea grass hairpin.

当岁月流逝，当我们变得愈来愈市侩、愈来愈不浪漫时，我们所能拥有的，只剩下初恋时美好的回忆，和当时那段甜蜜爱情的见证——一枚情人亲手编的蓍草簪子。

When the strap is positioned at the contracted position, the hook can be positioned adjustably along the length of the strap; when the strap is positioned at the spread position, the hook can be fixed on the selected position of the strap.

当带子处在收缩位置时，该钩子可调节地沿带子的长度定位；而当带子处在展开位置时，该钩子可固定到带子的选定位置上。

XRD, EDS, ETIR and SEM reveal the precipitate obtained from YN23-inoculated flasks to be a mixture of potassium jarosite and ammoniojarosite, with morphological features similar to the latter.

接种25h后，当Fe(上标 2+)氧化率达到90%时，开始出现沉淀，pH也达到1.92的最高值；到第95h，当沉淀累积到7.9gl^(-1)，时，沉淀反应停止，此时pH达到1.32的最低点。

Better denitrification efficiency could be obtained with adding amylo and the removal ratios of ammonia nitrogen were at least 93%. The removal ratio of TN increased gradually with the increasing of C/N ratio. When C/N ratio was 10, the best removal ratio of TN could reach 80.81%. But when C/N ratio added on 12, the ratio removal of TN was not increased only keeping about 75%.

投加淀粉调整C/N比，系统能取得良好的脱氮效果，氨氮的去除率均在93%以上，随着C/N比的增加，TN的去除率也逐渐的增大，当C/N为10时，TN最高去除率能达到80.81%，但当C/N增大到12时，TN的去除率不再增大，只是稳定在75%左右。

Rochester entered, unajaounced, and looking at us, seemed to take pleasure in the spectacle of a group so amicable- when he said he supposed the old lady was all right now that she had got her adopted daughter back again, and added that he saw Adele was 'prete a croquer sa petite maman Anglaise'- I half ventured to hope that he would, even after his marriage, keep us together somewhere under the shelter of his protection, and not quite exiled from the sunshine of his presence.

但是，当我们如此坐着，罗切斯特先生不宣而至，打量着我们，似乎对一伙人如此融洽的景象感到愉快时——当他说，既然老太太又弄回自己的养女，想必她已安心，并补充说他看到阿黛勒是&preteacroquersapetitemamanAnglaise&时——我近乎冒险地希望，即使在结婚以后，他也会把我们一起安置在某个地方，得到他的庇护，而不是远离他所辐射出的阳光。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。