查询词典 pre-existent

After building a model of this nonlinear pre-amplifier and assuming the equivalent input noise, the receiver's BER performance of the linear and nonlinear pre-amplifiers is calculated and compared.

建立了光接收机非线性前放的模型，在给定等效输入噪声的条件下，计算并比较了接收机采用线性前放与非线性前放的误码性能。

Both brain ischemic pre-conditioning and PGE1 could induce cerebral ischemic tolerance through increasing Bcl-2 expression and reducing Bax expression. The effect of PGE1 in inducing cerebral ischemic tolerance was better than that of brain ischemic pre-conditioning.

预缺血及PGE1预处理后，使Bax蛋白表达减少，Bcl-2蛋白表达增高能够诱导脑缺血耐受，且PGE1的作用优于预缺血。

Objective To evaluate heat shock protein 72 (HSP72) mRNA expression in myocardium of non cyanotic patients of congenital heart disease during cardiopulmonary bypass surgery for correction of congenital heart disease, to investigate if tetramethylpyrazine pre-conditioning can modify the expression of HSP72 during CPB ,and if TMP pre-conditioning can attenuate CPB-induced myocardial ischemia reperfusion injury through a self-protective mechanism.

目的：研究体外循环前后非发绀型先天性心脏病矫治术患者心肌组织中热休克蛋白72(HSP72)的表达和川芎嗪预处理对其表达的影响，并探讨川芎嗪预处理的心肌保护机制。

Both the increase of lipid peroxidation reaction rate and the shortening of the latent period were dependent on the pre-existed lipid peroxides in liposomes. Al3+ accelerated the oxidation of Fe2+ in liposomal system only when liposomes contain pre-exist peroxides. The addition of Al3+ to the liposomal suspension resulted in a marked increase of turbidity of the suspension and decrease of fluidity of the liposomes.

这可能是因为在脂质体存在的条件下，Al3＋加速了Fe2＋的氧化，且加速作用与脂质体中原先存在的过氧化物的含量有关；另一方面，Al3＋可以引起脂质体的聚集，表现为浊度的增加；测量脂质体上标记的脂肪酸自旋标记物5－ Doxyl stearic acid 的ESR 波谱发现： Al3＋降低了脂质体的膜脂的流动性。

Some people say that people have pre-existence, the deja vu of the pre-existence is to see things.

有人说，人是有前生的，似曾相识就是见到了前生的东西。

I believe that the pre-existence in this life will once again miss the meet, but if you do not take advantage of, this life you would not necessarily be able to get back to pre-existence of the miss.

我相信前生错过的今生一定会再次相遇，但是你如果不好好把握，今生你也不一定能得回前生所错过的。

The APLU also dynamically selects between enabling a pre-fetch function and disabling the pre-fetch function for the memory devices based on the results of the analysis.

该APLU还基于分析的结果动态地在针对存储器器件启动预取功能和停用预取功能之间做出选择。

The controller uses the data write buffer to reduce the data access waiting time, and employs the two ways of duo channels instruction pre-fetch buffer to decrease the fetching instruction waiting time and increase the instruction pre-fetch buffer hit rate. Meanwhile, to reduce the waiting time aroused by page miss of SDRAM, a four ways of on chip stack memory is introduced. Compared with traditional controller through experiments the novel SDRAM controller gets a high reduction up to 63% in access waiting time and 64% in page miss.

该控制器采用数据写缓存方式降低了数据在存取内存时的等待时间；并引入了两组双通道预取指令缓冲器，每组双通道都用以减少取指令时的等待时间，采用两组的结构是为了增加指令预取的命中率；同时还使用了四路组关联的片上堆栈存储器来降低SDRAM的页失效频率，从而降低了因页失效而需要等待的时钟周期。

This paper sets forth regimentation principle,program and method of the pre-tender price in the building project item,and presents how to make pre-tender ,embodies the importance of project bidding bottom in bidding work.

从标底价格的编制原则、编制程序、编制方法等方面对建设工程项目招标标底的编制进行了阐述，并提出了如何编制工程标底，体现了工程标底在招投标工作中的重要性。

Pre-operative multislice CT image evaluation is of great use for prediction of surgical removability in patients with pancreatic carcinoma pre-operatively.

术前用多层螺旋CT对胰腺癌患者进行三维血管重建，可提供可靠的肿瘤和周围血管侵犯情况的影像学资料，对胰腺癌术前可切除性评估有重要的临床意义。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。