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     When the quality of stimulation water was CODMn 10.85 mg/L, TN8.92mg/L, NH3-N 5.49mg/L, TP 0.56mg/L, the rate of removal in the experiment using Festuca arundinacea would reach 73.1 % 、 93.2 %、 95.4% and 94.6% respectively.
     当供试水样中COD_(Mn)为10. 85mg/L,TN为8. 92mg/L,NH3-N为5. 49mg/L,TP为0. 56mg/L时,高羊茅的去除率分别达到73. 1%、93. 2%、95. 4%和94. 6%。
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     However,in patients with T tube,the work of breathing was high by 15 4% compared with PSV 0 49 kPa( P <0 05),and by 38 5% compared with 2 hours after tube extraction ( P <0 01).
     T管时呼吸功(9.31J/min)比PSV0.49kPa时高15.4%(P<0.05),比拔管后2小时高38.5%(P<0.01)。
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     The work of breathing in patients with CPAP 0 49 kPa was 9 98 J/min,which was significantly higher than those with PSV 0 49 kPa(23 7%), P <0 001,and with 2 hours after tube extraction (48 5%), P <0 01.It was no obviously difference compared to the condition of T tube.
     CPAP0.49kPa时呼吸功(9.98J/min)比PSV0.49kPa时高23.7%(P<0.001),比拔管后2小时高48.5%(P<0.01),与T管时比较无显著性差异。
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     RESULTS ①High dosage of SSC could reduce the level of blood glucose in normal mice (from 5.8±0.6 mmol·L·kg -1 to 5.4±0.5 mmol·L·kg -1 , P <0.05) after ig SSC at 2.4 g·kg -1 for 12 days.
     结果  1 SSC 0 .6 ,1 .2和 2 .4g· kg- 1 SSC给小鼠 ig,仅 1 2 d时高剂量组血糖由 (5 .8± 0 .6 ) m mol· L- 1 降至 (5 .4± 0 .5 ) mmol· L- 1 (P<0 .0 5 ) ;
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     When strain rate was decreased from 4.6×10-3s-1to 4.6×10-6s-1, total elongation of the high carbon SiMn TRIP steel increased from 14%~15% to about 22%;
     应变速率由4.6×10-3s-1降至4.6×10-6s-1时,高碳硅锰TRIP钢伸长率由14%~15%提高到22%左右;
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     The Study of High-larynx Phenomenon in Singing
     歌唱时高喉器现象研究
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     TNF-β and TRAIL constitutively expressed during the culture period in vitro.
     TNF-α第20天时高表达。
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Some of the viewpoints held by Prof. Chwang Chien-ting in his paper "The Fusion Point of Ash of Chinese Coals" (this journal, 1957, 2, No. 2, 114) are quite worthy to notice and discuss. 1. The assumption made by Prof. Chwang concerning the composition of coal ash cannot be warranted. In fact, the various ingredients of coal ash originate from very complicated mineral matters. Thus the assumption that coal ash is simply composed of the various metallic oxides mechanically mixed is unjustifiable. Prof. Chwang...

Some of the viewpoints held by Prof. Chwang Chien-ting in his paper "The Fusion Point of Ash of Chinese Coals" (this journal, 1957, 2, No. 2, 114) are quite worthy to notice and discuss. 1. The assumption made by Prof. Chwang concerning the composition of coal ash cannot be warranted. In fact, the various ingredients of coal ash originate from very complicated mineral matters. Thus the assumption that coal ash is simply composed of the various metallic oxides mechanically mixed is unjustifiable. Prof. Chwang further postulated that when SiO_2/Al_2O_3=1.17 (i.e. the relative amounts of SiO_2 and Al_2O_3 in ash conform to the composition of kaolin Al_2O_3·2SiO_2·2H_2O and no free SiO_2 is present), the increase of percentage of metallic oxides in ash will not reduce the fusion point of the ash as there is no free SiO_2 to combine with the metallic oxides to form low-melting silicates. However, this postulation is inconsistent with the statement of the original paper and. also disproved by the experimental results. 2. For the same SiO_2/Al_2O_3 ratio, the increase of content of metallic oxides b(=Fe_2O_3+CaO=MgO=K_2O=Na_2O) in ash usually reduces the fusion point of the ash. But our experimental results show that when b exceeds 35%,the fusion points are higher than those for b equal to 30%. 3. For the same SiO_2/Al_2O_3 ratio, the fusion point of the ash increases with R(=SiO_2/Al_2O_3/Fe_2O_3+CaO+MgO+K_2O+Na_2O);when R is of approximately the same value, the smaller the SiO_2/Al_2O_3 ratio, the higher will be the fusion point. When R approaches or is smaller than 1, the fusion point shows no definite regularity, irrespective of the variation of SiO_2/Al_2O_3 ratio. 4. In the whole range of the coalification series, the content of volatile matter can represent neither the composition of the coals themselves, nor that of the ashes, hence it bears no relation with the fusion point of the ash. From the experimental results, no clear correlation can be found between the sulfur content and the iron content in ash, so that the fusion point is not closely related with the sulfur content of the ash. The influence of SiO_2 on the fusion point of coal ash is still uncertain and disputable, pending further investigation and verification.

莊前鼎教授所著“中國煤的灰熔點”一文中的部分論點是值得商榷的。 (1) 根據莊先生提出的理論,即假定煤灰的主要成分係由瓷土+自由SiO_2+各種金屬氧化物所組成,因而當煤灰中的SiO_2/Al_20_3=1.17時(即SiO_2與Al_2O_3都被認為是來自瓷土——2SiO_2·Al_2O_2·2H_2O,而無自由SiO_2存在時),雖金屬氧化物增加,但沒有自由SiO_2和金屬氧化物結合而降低灰熔點。然而實際上煤灰成分是來自煤中極其複雜的無機礦物質,將煤灰簡單地假定為瓷土、自由SiO_2及金屬氧化物的機械混合物是不恰當的。這一論點不僅與原文內容有不符之處,而且實驗結果也證明它不能成立。 (2) 一般在煤灰中的SiO_2/Al_2O_3相同時,金屬氧化物b%(Fe_2O_3+CaO+MgO+K_2O+Na_O)的增加,能降低煤灰熔點。但是根據試驗結果,富b%達35%以上時,灰熔點反較b為30%時高。 (3) 當SiO_2/Al_2O_3相同時,R=(SiO_2+Al_2O_3)/(Fe_2O_3+CaO+MgO+K_2O+Na_2O)愈大,灰熔點愈高。如R近似時,SiO_2/Al_2O_3愈小,灰熔點愈高。當R...

莊前鼎教授所著“中國煤的灰熔點”一文中的部分論點是值得商榷的。 (1) 根據莊先生提出的理論,即假定煤灰的主要成分係由瓷土+自由SiO_2+各種金屬氧化物所組成,因而當煤灰中的SiO_2/Al_20_3=1.17時(即SiO_2與Al_2O_3都被認為是來自瓷土——2SiO_2·Al_2O_2·2H_2O,而無自由SiO_2存在時),雖金屬氧化物增加,但沒有自由SiO_2和金屬氧化物結合而降低灰熔點。然而實際上煤灰成分是來自煤中極其複雜的無機礦物質,將煤灰簡單地假定為瓷土、自由SiO_2及金屬氧化物的機械混合物是不恰當的。這一論點不僅與原文內容有不符之處,而且實驗結果也證明它不能成立。 (2) 一般在煤灰中的SiO_2/Al_2O_3相同時,金屬氧化物b%(Fe_2O_3+CaO+MgO+K_2O+Na_O)的增加,能降低煤灰熔點。但是根據試驗結果,富b%達35%以上時,灰熔點反較b為30%時高。 (3) 當SiO_2/Al_2O_3相同時,R=(SiO_2+Al_2O_3)/(Fe_2O_3+CaO+MgO+K_2O+Na_2O)愈大,灰熔點愈高。如R近似時,SiO_2/Al_2O_3愈小,灰熔點愈高。當R接近1或小於1時,則不論SiO_2/Al_2O_3變化如何,與灰熔點之間無任何規律的關係。 (4) 從無煙煤到長焰煤,揮發分V~Γ既不能完全代表煤成分,更不能作為煤灰成分,因之與灰熔點無任何關係。根據實驗結果,煤中的全硫量較高時,煤灰中Fe_2O_3含量並不一定高,故與灰熔點並無明顯的關係。SiO_2含量對煤灰熔點的作用尚難確定,有待於進一步的研究。

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本文报告己内醯胺证聚合进程中各阶段形成的聚合物及其分子量分布的变化。己内酰胺的聚合是用6-氨基己酸为引发剂在封管中氮气存在下230°加热进行的。将不同聚合时间(0.5,1.5,3,7,9,15,100小时)所得的聚合物,经苯及水抽提后,在苯酚-甲醇系统进行分级,各级分分别用端基滴定法测定其分子量,作出累积重量分布曲线和微分分子数分布曲线。结果显示,各个试样所得的分布曲线均有一较狭窄的高峯,此高峯随着聚合时间的增加而逐渐向分子量较高的方向移动,反应至最后时高峯又向分子量较低的方向移回,并与数均分子量相重合。在九小时以前各试样的分布曲线,除有一狱窄高峯外尚有一分子量较低的宽广部分。这一部分也是随着反应进程向分子量增高的方向移动,而在九小时以后渐趋消失。从各级分计算的重均分子量和数均分子量也随着反应的进程逐渐接近,分散系数趋近于1。这些结果使作者等以前所建议的己内醯胺聚合反应机构进一步获得证明。

In chloroplasts illuminated in strong light for a few seconds, some high energy intermediates are accumulated, which can transform ADP and Pi into ATP in darkness. This phenomenon, preliminarily reported in a previous paper, has been further studied, and the results obtained are as follows:(1)It is shown that the high energy substances accumulated in the light is neither the result of irrelevant side reactions(Tab. 1), nor that of ATP-Pi exchange reaction(Tab. 2, 3), but is connected with the intermediate steps...

In chloroplasts illuminated in strong light for a few seconds, some high energy intermediates are accumulated, which can transform ADP and Pi into ATP in darkness. This phenomenon, preliminarily reported in a previous paper, has been further studied, and the results obtained are as follows:(1)It is shown that the high energy substances accumulated in the light is neither the result of irrelevant side reactions(Tab. 1), nor that of ATP-Pi exchange reaction(Tab. 2, 3), but is connected with the intermediate steps of photophosphorylation. Further experiment indicate that the step concerned with the accumulation of intermediates is located in the phosphorylation mechanism(Tab. 7)and before the velocity limiting reaction of the PMS mediated photophosphorylation process(Tab. 6).(2)By comparing the effects of the various conditions, it is found that the accumulation and transformation of the intermediate and the process of photophosphorylation, are closely related. Many experimental results, such as the light intensity curve(Fig. 1), the influence of the coexisting photophosphorylation on the accumulation of intermediate(Tab. 6), the requirement of cofactors or hydrogen acceptors(Tab. 7)et al., indicate that the accumulated high energy substance behaves like an intermediate of photophosphorylation. But, there are also some clues that certain behaviours of the high energy substance cannot be simply treated as a simple intermediate of photophosphorylation, for example, the velocities of its accumulation and transformation being several times slower than the process of photophosphorylation; the severe hindrance of its transformation into ATP at low temperatures(Fig. 5), etc.(3)The accumulation of the high energy product in the chloroplasts may amount to 1/10 of the chlorophyll content on molar basis, and some times even more. Investigations on the properties of the product show that it is fat soluble(Fig. 6, 7, 8)and is easily destroyed by ultraviolet light(Tab. 12).(4)Possible reasons for the discrepancy in the velocities of the accumulation and transformation of the intermediates compared with that of the process of photophosphorylation are suggested and the similarities of the accumulated intermediates to plastoquinone are discussed.

当叶綠体在強光下預照光数秒钟后,其中有高能物貭积聚,它可在暗中使ADP和Pi轉化成ATP。这个現象,在前文已有初步报导,現在更作了进一步的研究,所得結果如下: (1)肯定这光下积聚的高能物貭不是旁杂反应的产物或ATP—Pi交換反应的产物,而是与光合磷酸化中間步驟有关的。有些实驗表明,与此积聚高能物貭有关的中間步驟处于磷酸化部分并且位于PMS促进的光合磷酸化的速度限制反应之前。(2)比較了一些条件对高能物貭的积聚与轉化及对进行光合磷酸化的影响,看到高能物貭的积聚与轉化同光合磷酸化有密切的关系,諸如光強的影响、有光合磷酸化进行时高能物貭的积聚情况、对輔助因子或氫受体的要求等实驗結果,都符合于表明光下所积聚的高能物貭是光合磷酸化的中間产物。但是,也有不少迹象显示出来,这光下积聚的高能物貭有許多行为不能簡单地把它当作光合磷酸化过程中的中間产物来解释,例如,它的积聚速度与轉化速度比光合磷酸化过程要慢好多倍,并且低温显著地不利于光下积聚中間产物轉化成ATP(这現象在光合磷酸化过程中是沒有的)等。(3)光下积聚中間产物量最高时可达叶綠素含量的1/10;甚至更多些。初步研究此中間产物的性貭,說明它很可能是一个脂溶...

当叶綠体在強光下預照光数秒钟后,其中有高能物貭积聚,它可在暗中使ADP和Pi轉化成ATP。这个現象,在前文已有初步报导,現在更作了进一步的研究,所得結果如下: (1)肯定这光下积聚的高能物貭不是旁杂反应的产物或ATP—Pi交換反应的产物,而是与光合磷酸化中間步驟有关的。有些实驗表明,与此积聚高能物貭有关的中間步驟处于磷酸化部分并且位于PMS促进的光合磷酸化的速度限制反应之前。(2)比較了一些条件对高能物貭的积聚与轉化及对进行光合磷酸化的影响,看到高能物貭的积聚与轉化同光合磷酸化有密切的关系,諸如光強的影响、有光合磷酸化进行时高能物貭的积聚情况、对輔助因子或氫受体的要求等实驗結果,都符合于表明光下所积聚的高能物貭是光合磷酸化的中間产物。但是,也有不少迹象显示出来,这光下积聚的高能物貭有許多行为不能簡单地把它当作光合磷酸化过程中的中間产物来解释,例如,它的积聚速度与轉化速度比光合磷酸化过程要慢好多倍,并且低温显著地不利于光下积聚中間产物轉化成ATP(这現象在光合磷酸化过程中是沒有的)等。(3)光下积聚中間产物量最高时可达叶綠素含量的1/10;甚至更多些。初步研究此中間产物的性貭,說明它很可能是一个脂溶性物貭,并且易受紫外光破坏。(4)文中对此中間产物积聚与轉化速度較光合磷酸化过程为慢的現象分析了它可能的原因,并且将此中間产物与叶綠醌的一些性貭的类似之处作了討論。

 
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