缺乏...时

So, a lot of fundamental research work needed to be done, including screening Daphnia, as a biomonitor, that is sensitive to toxicant but less to environment changing so as to decrease the environmental interferences for obtaining more accurate determination results; exploring the relationship between the phototactic behavior of Daphnia and pollutants such as nitrogen, phosphate, heavy metal, hormone and pesticide, especially their mixtures; studying the effect of environmental conditions such as temperature, pH and fish kairomones on the phototactic behavior of Daphnia.

口。。。口国。国里华典翩胭角嗓国但由于缺乏有效的研究方法，致使有关研究难于开展，人们不得不忽略有害物质之间的互相作用，把有害物质共同存在情况视为单一存在。因此，研究氮、磷和重金属对水搔趋光行为的影响规律，有益于认识富营养化水体和重金属污染的土壤中污染物之间的相互作用，弄清这些污染元素共存时产生的生物和环境效应，这些研究是治理土壤和水体污染之前必须解决的重大科学问题。

So, a lot of fundamental research work needed to be done, including screening Daphnia, as a biomonitor, that is sensitive to toxicant but less to environment changing so as to decrease the environmental interferences for obtaining more accurate determination results; exploring the relationship between the phototactic behavior of Daphnia and pollutantssuch as nitrogen, phosphate, heavy metal, hormone and pesticide, especially their mixtures; studying the effect of environmental conditions such as temperature, pH and fish kairomones on the phototactic behavior of Daphnia.

口。。。口国。国里华典翩胭角嗓国但由于缺乏有效的研究方法，致使有关研究难于开展，人们不得不忽略有害物质之间的互相作用，把有害物质共同存在情况视为单一存在。因此，研究氮、磷和重金属对水搔趋光行为的影响规律，有益于认识富营养化水体和重金属污染的土壤中污染物之间的相互作用，弄清这些污染元素共存时产生的生物和环境效应，这些研究是治理土壤和水体污染之前必须解决的重大科学问题。

At the first half of the 20th century when China's arts entered into its modern stage, Xu Beihong was undoubtedly a great figure in the arts field. To change the situation of plagiarization and imitation, and listless style for lack of life experience in Chinese painting then, he was the first to integrate the exquisite realistic practice of western paintings to Chinese paintings, following good command of both of them, exploring a new and wide horizon for the revolution and development of traditional arts.

在20世纪上半叶中国艺术进入现代之时，徐悲鸿无疑是艺术界举足轻重的人物，为了扭转中国画抄袭、模仿、缺乏生活气息的萎靡颓风而大声疾呼，他学贯中西，将西方精湛的写实技巧融汇到中国绘画之中，为传统艺术的革新与发展开拓了新的广阔天地。

We may suffer from physical ailments when prana is lacking in the body.

我们可能患上时普拉纳是体内缺乏身体上的疾病。

Plasma concentration of both Ang Ⅱ and ALDO returned to predepletion levels after third sodium depletion 5 days,but ANP was inhibited.

大鼠经3次钠缺乏恢复正常生活5d时，对血管紧张素Ⅱ、醛固酮的分泌量没有影响，而使心房肽的分泌受到抑制。

In Wistar rats, latent period of a-wave in scotopic rod response after 1-week transplantation was shorten (P.05); and latent period of a-wave in scotopic rod response after 2-week transplantation was prolonged (P.05); while latent period of b-wave in scotopic maximum response after 1-week transplantation was shorten (P.05). In RCS rats, amplitude of a-wave in scotopic rod response and photopic response after 4-week transplantation was increased (PO.05); while latent period of a-wave in scotopic rod response after 4-week transplantation was shorten (PO.05).Conclusion 1. At the age of 3 months, photoreceptors of the RCS rat degenerated completely, which leaded to the reduction of amplitudes of a-wave and b-wave.

Wstar大鼠术后1周的暗适应视杆反应，a波潜伏期缩短o叼。05）；术后2周的暗适应视杆反应，a波潜伏期延长o功刀5）：术后1周的暗适应最大反应，b波潜伏期缩短o功刀5卜＊CS大鼠术后4周的暗适应视杆反应和明适应反应，a波振幅增大o功刀匀；术后4周的暗适应视杆反应，a波潜伏期缩短o＜0卜结论1、RCS大鼠在3月龄时感光细胞变性死亡，导致FERG的a、b波振幅明显降低；视网膜下腔仍存在感光细胞外节盘膜碎屑，外丛状层缺乏感光细胞的突触末端，同时Muler细胞出现反应性胶质纤维增生。

The macroscopic views of the terrains are okay, but when they used the same generation process for close-up scenes or background scenes of the characters in action, the lack of solidness of terrain images show up noticably.

地形的宏观全景做得很好，但是当它们被使用在特写镜头或者是被用作活动人物的背景时，也采用同样的制作流程的话，那么画面中的地面明显缺乏坚实感。

Japanese policy makers have been slow to respond to deteriorating economic conditions and a lack in political leadership has been making the situation worse,' wrote Susumu Kato, chief economist for CLSA in Japan in a note.

里昂证券（亚洲驻日本首席经济学家Susumu Kato在一份报告中写道，日本决策者在应对不断恶化的经济状况时行动迟缓，而政治引领的缺乏使得情况进一步恶化。

Benjamin Franklin, tackless in his youth, became so diplomatic, so adroit at handling people that he was made American Ambassador to France.

本杰明 富兰克林年轻时愣头愣脑，缺乏交际技能，后来却颇具外交策略，在处理人际关系中游刃有余，被任命为美国驻法国大使。

Therefore, thermophilic metalloenzymes have been demonstrated to retain their activities at high temperature.

更有趣的是，当缺乏Cu、Mo及Co这些金属离子时，则此高温催化水解反应即无法进行。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。