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延长时间

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Under a certain condition, there is negative correlation between the LC50 values of pH and those of Alk to black rockfish fingerling.

可见pH一定时,随着Alk的增大,碱度对鱼的致死作用也越大;随着受试时间的延长,碱度对鱼类的毒性作用也越来越大。

However, when chemotherapy is used alone or in combination with other methods, survival time can be prolonged four- to fivefold.

但当化疗单独使用或与其他方法,存活时间可以延长4至五倍。

Compared with the graphite, the coefficients of friction of the RL-C/C are lower under the same load of about 0.08-0.12, and the increasing range of the volume losses are still lower than those of the graphite. Compared with the SL pyrocarbon material, the COF and the volume loss of the SL-C/C are about 0.02-0.05 and 0.2 mm^3, lower than those under the same load. The COFs of most RL-C/C and SL-C/C specimens remain stable or decrease slightly with time, while those of the graphite and pyrocarbon specimens increase. The thickness of the integrated friction film of the RL-C/C decreases with load, but the wear surface of the SL-C/C is rough. Tough the wear surface of the graphite is integrated, the serious abrasive wear make the debris move easily and accumulate on the edge of the wear trace to form a restacked morphology. On the wear surface of the pyrocarbon material, some loosed debris, circular worn holes and flake worn out pyrocarbon has been found.

结果表明:PAN炭纤维改善C/C复合材料的摩擦磨损行为;在实验载荷范围内,与高强度石墨材料相比,含RL炭C/C复合材料的摩擦因数降低0.08~0.12;体积磨损量增幅降低;与热解炭试样相比,具有SL炭C/C复合材料的摩擦因数降低0.02~0.05,体积磨损量低0.2立方公厘左右;随着时间的延长,大部分C/C复合材料的摩擦因数基本相对稳定或呈小幅下降,而石墨、热解炭块的摩擦因数均呈不同幅度的上升;具有RL炭的C/C复合材料摩擦表面膜厚度随载荷增加而降低,具有SL炭的C/C复合材料摩擦表面较粗糙;高强石墨能形成较完整致密的摩擦膜,但磨粒磨损严重,磨屑易在摩擦膜边缘形成层状堆积;热解炭块摩擦表面磨屑堆积松散,有较多的孔洞以及热解炭层整体剥落的形貌。

Compared with the graphite, the coefficients of friction of the RL-C/C are lower under the same load of about 0.080.12, and the increasing range of the volume losses are still lower than those of the graphite. Compared with the SL pyrocarbon material, the COF and the volume loss of the SL-C/C are about 0.020.05 and 0.2 mm3, lower than those under the same load. The COFs of most RL-C/C and SL-C/C specimens remain stable or decrease slightly with time, while those of the graphite and pyrocarbon specimens increase. The thickness of the integrated friction film of the RL-C/C decreases with load, but the wear surface of the SL-C/C is rough. Tough the wear surface of the graphite is integrated, the serious abrasive wear make the debris move easily and accumulate on the edge of the wear trace to form a restacked morphology. On the wear surface of the pyrocarbon material, some loosed debris, circular worn holes and flake worn out pyrocarbon has been found.

结果表明:PAN炭纤维改善C/C复合材料的摩擦磨损行为;在实验载荷范围内,与高强度石墨材料相比,含RL炭C/C复合材料的摩擦因数降低0.08~0.12;体积磨损量增幅降低;与热解炭试样相比,具有SL炭C/C复合材料的摩擦因数降低0.02~0.05,体积磨损量低0.2 mm3左右;随着时间的延长,大部分C/C复合材料的摩擦因数基本相对稳定或呈小幅下降,而石墨、热解炭块的摩擦因数均呈不同幅度的上升;具有RL炭的C/C复合材料摩擦表面膜厚度随载荷增加而降低,具有SL炭的C/C复合材料摩擦表面较粗糙;高强石墨能形成较完整致密的摩擦膜,但磨粒磨损严重,磨屑易在摩擦膜边缘形成层状堆积;热解炭块摩擦表面磨屑堆积松散,有较多的孔洞以及热解炭层整体剥落的形貌。

PCEA with bupivacaine and morphine did not delay the time of first flatus after surgery.

全部病人术后首次肛门排气时间无显著延长。

It is very important and necessary to discover and understand floodwater geological records.

因此,利用地质记录延长洪水时间序列,从地质记录中认识洪水的发生规律,显得非常重要和必要。

The diameter of flower,diameter of stalk and height of stalk of the treatment were higher than that o...

处理组花期的花径、株径、株高均高于对照组,外观株型整体比对照美观,其中以0.1 mmol.L-1处理的效果最明显,开花时间比对照提前3d,整个花期延长10d。

Investigation on the intermediates shows that the shape of products changes from curled nanoflakes to flower-like patterns then dense flower-like patterns with the increase of complex concentration and reaction time.

对中间产物的研究结果表明,随着配合物浓度的增加、反应时间的延长,产物形貌从卷曲的片状转变成纳米片组成的花状且花状结构逐渐增密。

Porous TiO2 nanostructures, well-adhered to Ti foil surfaces, were formed at 80℃in 10 min, and then flower-like and rod nanostructures formed in succession after a longer reaction time.

在80℃下反应10 min得到了和Ti片黏附较好的多孔纳米结构,延长反应时间先后得到了类花状和类棒状纳米结构。

The effects of As2O3 on HeLa cells and AsPC - 1 cells survival and apoptosis were determined by MTT assay and light microscope, and cellular ROS was also measured by fluorometer.

结果:2μmol/L As2O3处理HeLa细胞48h后细胞的生长受到明显抑制,表现出细胞凋亡的特征,随着As2O3浓度的增加和作用时间的延长效果更加明显。

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The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作:对伸臂位于顶部的单层框架—筒体模型进行分析,提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。

Its advantage is that it can be used in smaller units.

其优点在于可以在较小的单位中应用。