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  in advance
     ③U50488H group: rats were given 1.5 mg/kg U50488H in advance, and modeling was conducted at 15 minutes later with the same method as the ischemic reperfusion group.
     ③U50488H组:预先给予U50488H1.5mg/kg,15min后造模,方法同缺血再灌注组。
短句来源
     ANGⅡ+ tanshinoneⅡgroup: 1×10-5 mol/L tanshinoneⅡA was added in the culture fluid in advance to act for 30 minutes, and 1×10-6 mol/L ANGⅡ(provided by the National Institute on Drug Abuse of China with the batch number of 0766-200010) was then added.
     血管紧张素Ⅱ+丹参酮ⅡA组:心肌细胞培养液中预先加入1×10-5mol/L丹参酮ⅡA作用30min后,再加入1×10-6mol/L血管紧张素Ⅱ(中国药品生物制品检定所提供,批号0766-200010);
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     Then, the paper illustrates the process that transplanting μC/OS-II to C8051F124based on the introduction of primary coverage of μC/OS-II in advance.
     然后,在预先介绍μC/OS-II主体内容的基础上,论文详细介绍了μC/OS-II在C8051F124上移植的过程。
短句来源
     With the application of 10~ -5 mol/L and 10~ -4 mol/L lidocaine in advance, the spike values of each group were not significantly different from that of the contral after the administration of DNP, but the spike values after 5×10~ -4 mol/L lidocaine were lower than that of the control after the administration of DNP.
     预先应用10-5mol/L与10-4mol/L利多卡因后再给予DNP,海马神经元钠电流峰值与对照组无明显差异,而5×10-4mol/L利多卡因可使给予DNP后的钠电流峰值显著低于对照组。
短句来源
     DPCPX could not affect the magnitude of LTP inhibited by AP 5 (0 5 m g·L -1 , 5 μL) NMDA receptor antagonist, but the inhibitory effect of AP 5 on LTP could be antagonized by icv DPCPX in advance.
     AP5(0 5mg·L- 1,5μL)阻断NMDA受体后对LTP的抑制作用不受DPCPX的影响 ,但预先给予DPCPX则可取消AP5 对LTP的抑制作用。
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  beforehand
     However,when treated with 0 37,3 7 and 37 Bq/g body weight of 147 Pm internal radiation beforehand,and 3 days later followed by 2 0 Gy 60 Co γ external radiation,compared with 60 Co external γ ray radiation only,counts of RBC and RC increased significantly with significant decrease of mn NCE and mn PCE(P<0 05,or P<0 01).
     然而 ,预先应用低剂量14 7Pm 0 37,3 7,37Bq/g内照射预处理动物 ,3d后相继给予高剂量60 Coγ射线 2 0Gy外照射 ,RBC和RC计数显著增加 ,NCE和PCE微核细胞率显著降低 ,与单纯高剂量60 Coγ射线外照射相比较 ,差异有显著性或非常显著性 (P <0 0 5或P<0 0 1) ;
短句来源
     When heat shock reaction is induced in liver beforehand,HSP 72 mRNA reflects the stress reaction ahead of schedule,and the production of HSP 72 can directly provide protection for hepatic ischemia-reperfusion injury.
     预先诱导肝脏产生热休克反应,HSP 72 mRNA的表达则反映了肝脏提前出现应激反应,HSP 72的产生直接对肝脏热缺血—再灌注损伤提供细胞保护作用。
短句来源
     Alloxan diabetes rats having continually been given allitridi injection 〔30, 40, 60 mg/(kg·d)〕 for 7 days beforehand, the blood sugar concentration decreased and serum insulin concentration increased.
     预先给四氧嘧啶性糖尿病大鼠大蒜素〔30mg/(kg·d),40mg/(kg·d),60mg/(kg·d)〕,连续7d。
短句来源
     Expression of LPS-induced Cyclooxygenase-2 Protein in the Rat Brain with Meloxicam Given Beforehand
     预先给美洛昔康后LPS所致COX-2蛋白在大鼠脑内的表达
短句来源
     Methods: By using the model of global heart ischemia/reperfusion(I/R,20min/20min) in rats in vitro , perfusing H303(0.2,0.1mg/ml,10min) beforehand, we measured the changes of MDA, PLA 2, PL, FFA, LFU, Ca 2+ ATPase, Na +,K + ATPase and respiratory function of mitochondria.
     方法 :利用离体大鼠全心停灌 /再灌 (I/R)模型 ,预先灌注H30 3(0 .2 ,0 .1mg/mL ,灌注 10min) ,观察对MDA、磷脂酶A2 、磷脂、游离脂肪酸、膜脂流动性、ATPase及线粒体呼吸功能的影响。
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  preestablished
     A specialized welding machine used in pipe installation based on AT89S8252 was designed,in which the specifications in different position can be preestablished easily,and uninterruptedly transferred in response to the demand of program. It supplies a new type of welding source for automation welding process which is used for welding pipe.
     设计了基于AT89S8252单片机控制的管道专用焊机,该焊机能够方便地预先设置不同位置的焊接规范参数,并根据程序设定实现不同焊接规范参数之间的自动、连续切换,为管道的自动化焊接提供了一种新型配套电源。
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  “预先”译为未确定词的双语例句
     An Approach to the Evaluation of City Environment Quality From Ecological Point of View.
     运用生态学观点探讨城市环境质量的预先评价
短句来源
     Effect of Prior Cold Deformation On Austenitization In Intercritical Temperature Range Of Steel O9SiMnCrMo
     预先冷变形对09SiMnCrMo钢临界区奥氏体化过程的影响
短句来源
     INTRAOCULAR PRESSURE CHANGES AFTER ND:YAG LASER CAPSULOTOMY WITH PREOPERATIVE USE OF TIMOLOL
     预先应用噻吗心安对Nd:YAG激光后囊切开术后的眼压观察
短句来源
     INFLUENCES OF PRETREATMENT AND Ti CONTENT ON AUSTENITE GRAIN SIZE IN 18CrMnB STEEL
     预先热处理及钛含量对18CrMnB钢奥氏体晶粒度的影响
短句来源
     Increase of the Critical Clectric Current Density of YBa_2Cu_3O_(7-x) by Preheat Treatmenta t High Temperature
     高温预先热处理提高YBa_2Cu_3O_(7-x)的临界电流密度
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  in advance
We show that the rate of convergence for this reconstruction algorithm is geometric and computable in advance.
      
We show that the rate of convergence for this reconstruction algorithm is geometric and computable in advance.
      
In particular, when the new shape parameter of the distribution under progressive stress is given (or estimated in advance), the closed forms of these estimators are relatively simple and are numerically accessible on computers.
      
Each job becomes available at its arrival time, which is unknown in advance, and its processing time becomes known upon its arrival.
      
The results illustrate that the combustion happens in advance and the ignition delay period is shortened.
      
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  beforehand
In the second case, owing to radial symmetry, the equation for the problem goes over into an ordinary equation; however, the wetted boundary is not known beforehand.
      
However, the body shape is not known beforehand, in fact, and a law for its variation can be obtained only by simultaneous consideration of flow in the shock layer, the wake, and the gas cloud.
      
The analytical solutions to this type of problem usually approximately satisfy the conditions on the diffracted front, the position of which is not known beforehand, but is found along with the solution.
      
It has been shown that the acceptance levels are individual for different inspected zones and are set on the basis of the statistical data obtained during the tests of wheel pairs containing flaws detected beforehand.
      
The proposed method can be used only when the signs of the piezoelectric constants are known beforehand.
      
更多          
  preestablished
No effect of calphostin C was observed on preestablished LTP, even at concentrations of 2-3 μmol/l.
      
The experimental design compares conditions of preestablished learning (L-) with active learning (L+).
      
Relativity in late Wilhelmian Germany: The appeal to a preestablished harmony between mathematics and physics
      
Induction of antitumor immunity and treatment of preestablished tumor by interleukin-6-gene-transfected melanoma cells combined
      
Separation occurs always at a preestablished zone of abscission at the base of the crown.
      
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The present work extends the obserwtion of an earlier report and Shows that the conduction block in nerve produced by cocaine, procaine, urethane, isotonic choline chloride, TEPP and DFP, though not accompanied by any lowering of membrane potential, can be relieved by anodal current. It follows that the mechanism of anodal relief of block can not be supposed to be simply a restoration of previously lowered membrane potential. With eserine, although depolarization occurs, the block develops. long before, the...

The present work extends the obserwtion of an earlier report and Shows that the conduction block in nerve produced by cocaine, procaine, urethane, isotonic choline chloride, TEPP and DFP, though not accompanied by any lowering of membrane potential, can be relieved by anodal current. It follows that the mechanism of anodal relief of block can not be supposed to be simply a restoration of previously lowered membrane potential. With eserine, although depolarization occurs, the block develops. long before, the start of the depolarization; thus the anodal relief of the block produced by eserine likewise cannot be simply due to a restoration of polarization. Successful anodal relief of block somehow depends upon the initial state of the nerve. For instance, it is better in a freshly dissected nerve than in a nerve after several hours soaking in Ringer; better in a nerve having had prolonged soaking in Ringer with somewhat raised potassium concentration than in a potassium-free Ringer. It seems that any prior treatment causing a decrease of the potassium content of the nerve, tends to make anodal current less effective in relieving conduction block.

本文研究可卡因、普魯卡因、氨甲酸乙酯、氯化膽鹼、依色林、TEPP及DFP在兩棲類神經所產生的傳導阻遏。上述各種傳導阻遏的特點,是或者根本沒有膜電位的降低与之相伴,或者膜電位的降低發生在傳導阻遏之後。但是在一定條件下,陽極電流對於這些傳導阻遏都有解除作用。陽極電流對上述由於可卡因、普魯卡因、氨甲酸乙酯及氯化膽鹼所產生傅導阻遏的解除效應,與神經原來的狀態有关。一般地說,凡試驗前的預先處理,有減低神經鉀含量的影響者,亦有使陽極電流的解除效應減弱的傾向。

An electrophotometric method has been worked out for the determination of magnesium in cast iron using titan yellow as indicator.Briefly,the method consists of dissolving the sample in dilute sulphuric acid,separating iron and other metals such as copper and nickel by electrolysis with mercury cathode and precipitating manganese from ammoniacal solution with ammonium persulfate.Ammonimn salt,silica and traces of aluminaare thenremoved. Finally,the prepared titan yellow reagent is added to the solutionand the...

An electrophotometric method has been worked out for the determination of magnesium in cast iron using titan yellow as indicator.Briefly,the method consists of dissolving the sample in dilute sulphuric acid,separating iron and other metals such as copper and nickel by electrolysis with mercury cathode and precipitating manganese from ammoniacal solution with ammonium persulfate.Ammonimn salt,silica and traces of aluminaare thenremoved. Finally,the prepared titan yellow reagent is added to the solutionand the magnesium content determined from the electrophotometric reading.The time required for each determination is approximately 5 hours. The effect of interfering elements which are likely present in cast iron such as manganese, silicon,phosphorus, aluminum, copper, nickel and vanadium as well as ammonium ion and alkali and alkaline earth metals has been studied and discussed.It has been shown that manganese, silicon, aluminum,copper,nickel,iron and ammonium ions can be removed down to such low values as to cause no significant interference.Phosphorus under 0.4% has no appreciable effect.Vanadium is not separated in the present method,but fortunately it is usually present in insignificant amounts in ordinary cast iron.The effect of calcium is compensated by the introduction of saturated calcium sulphate solution before the titan yellow addition. Potassium and sodium have no appreciable effect when present in small amounts. The results obtained by the present method for the determination of magnesium in 11 known samples are good,the average difference being 0.002% in a range of 0.000% to 0.140% Mg.The data obtained by the present method are also in good agreement with those obtained by gravimetric methods On seven nodular iron samples made by the Metallurgical Division of our Institute.A detailed procedure for the determination of magnesium in cast iron has been suggested and included in this paper.In view of its rapidity and fair accuracy,the new photometric method might prove useful for the purpose of control in a nodular iron foundry.

本文报告将地丹黄比色法应用於测定铸铁中之镁的试验结果.如将铁、锰、铝、矽等干扰物质预先除去,则镁的测定并无困难.依照本文所擬的方法分析,所需时间约为五小时,较重量法迅速得多.

The hydroquinone method has been applied to the determination of tungsten in ores. Tungsten ore is fused with Na_2O_2 and Na_2CO_3 and followed by extracting with hot water. Most of the interfering ions are thus removed except molybdenum which remains sn the solution with tungsten. Since the amount of molybdenum is usually low its interference can be prevented by the addition of suitable amount of Sncl_2 and H_3PO_4.The results obtained by this method are good even with Ores of high tungsten content (70%).

1.對苯二酚比色法测定鎢必須在濃硫酸溶液中進行顯色,少量水存在使顏色深度減低;可加入過量的對苯二酚溶液避免魧Ρ蕉尤芤河昧繛?0毫/25毫升,則允許的含水量為4毫升/25毫升。2.少量钼酸根的干擾可加入適量的SnCl_2—H_3PO_4掩蔽,但若钼的含量超過16微克/毫升時,必須預先進行分離。3.用對苯二酚法测定鎢礦中鎢的含量, 得到尚满意的結果;测定範圍可高達70%。應用此法测定所需時間約為重量法的五分之一。

 
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