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The light filtrating properties were studied through the filling of 3D continuous pores with divinyl benzene as a highly refractive liquid.

研究了三维连续孔道在充满二乙烯基苯高折射液体后的滤光特性,通过引入金属离子改变固体材料折射率的方法,验证了光在高折射液相中的全反射效应,并从定性角度建立三维骨架材料的孔径及分布与透射光波长范围之间的关系,对新光学现象给出了初步解释。

Stamens 6; filaments proximally adnate to perianth tube, free part short to long; anthers positioned as high as or higher than stigma, dorsifixed.

雄蕊6;花丝下部的贴生于花被筒,离生部分短到长;花药的位置与柱头等高或更高,背着的。

Aqueous extract of cotton has allelopathic effect on Raphanus sativus, Brassica campestris, Lactuca indica, Brassica campestris, Echinochloa crusgall, Setaria viridis and Abutilon theophrasti and its inhibition effect gradually strengthens with increasing concentration. Aqueous extracts from stems, leaves and roots of cotton inhibit or accelerate seed germination and seedling growth, and activity of enzyme of seedling root of cotton. While aqueous extracts from stems and leaves of cotton are 0.02 gmL^(-1), root length, shoot length, lateral root number and dry weight of cotton respectively increase by 10.3%, 3.1%, 22.9% and 2.4% over the control. The above mentioned indexes are lower than the control by 34.4%, 39.2%, 40.6% and 19.0% respectively as the aqueous extracts are 0.1 gmL^(-1). At the same time, root activity and SOD activity decrease by 38.2% and 36.7%, while POD activity and MDA content increase by 52.3% and 36.5%. Growth indexes of plant receptors increase at low concentrations but decrease at high concentrations of aqueous extracts. The allelopathic effect of aqueous extract of stems and leaves is stronger than that of root.

结果表明:棉花植株水浸提液对萝卜、白菜、莴苣、油菜、稗草、狗尾草、苘麻均具有化感效应,随着作用浓度增加,抑制效应逐渐加强;棉花茎叶和根系水浸提液对棉花种子萌发、幼苗生长、幼苗根系活力、根系酶活性有抑制或促进作用,当茎叶浸提液浓度为0.02 gmL^(-1)时,棉花根长、苗高、侧根数、干重分别比对照增加10.3%、3.1%、22.9%和2.4%,当浓度为0.1 gmL^(-1)时,上述指标与对照相比分别降低34.4%、39.2%、40.6%和19.0%,而根系活力、SOD活性比对照降低38.2%、36.7%,POD活性、MDA含量较对照增加52.3%和36.5%,不同浓度棉花植株水浸提液对棉花生长呈现&低促高抑&的规律,且茎叶浸提液作用效应大于根系浸提液。

The difference is significance statistically. Conclusion: Nasal trachea cannula under the guidance of fibrobronchoscope is a high achievement ratio tracheal intubation method with better sufferer tolerance, longer time of detained airtube, higher extubate ratio, and which could avoid or reduce incision of trachea simultaneously, especially suit the chronic pulmonary disease patients.

纤支镜引导经鼻气管插管是成功率高、患者耐受性好、留管时间长、拔管率高、同时可避免或减少气管切开率的气管插管方法,尤其适合于有慢性肺部疾病的患者。

With least landscape separation and less patch dendity, Pinus massoniana patch was fargoing distribution and good continuity, resulted habitat type and aspect monotony.(3)In the analysis of visual sensitivity, using 10° and 20° as the boundary to classify the slope sensitivity, the high sensitive region which slope above 20° share 11.4% of the total area of the reserve, mainly located in the middle and upside of the mountain; using

3在视觉敏感度分析中,以10°和20°为界划分坡度敏感度级别,坡度大于20°的高敏感区域占保护区总面积的11.4%,主要分布在山体的中上坡;以沿道路两侧100m、200m和300m的距离为标准划分距离敏感度等级,将保护区划分为近景带,中景带,远景带和少见带,近景带可视情况良好,中景带和远景带中,道路沿山体一侧的观景距离内有小面积的区域因地形的阻挡而影响观景视线,主要是在大小长山、马鞍山、太渔山、马驿峰、鼎冠峰、宝盖峰等山体较陡峭的地方;视域几率敏感度分析中,保护区内高可见区和中可见区占保护区总面积的87.9%,表明保护区可视面积很大。

If the ratio or the concentration of 2, 4-D was higher, the callus formed quickly, but it was hygrophanous, and easy to necrosis, conversely, if the ratio or the concentration of 2, 4-D was lower, the callus appeared very slowly or could not form, and adventitious root formed directly or indirectly.

比值较高(或2,4-D浓度较高)时愈伤组织出现的时间较早,但愈伤色泽不好,呈半透明水渍状,易于褐化死亡,而比值较低时,愈伤出现得很慢或不形成愈伤,且易于直接或再分化形成不定根;这些不定根长至1.5-2.0cm时就不生长,并逐渐褐化。

With high carrier frequency in future communication systems and long OFDM symbol caused by and large subcarrier number, high mobile velocity that will result in fast-fading channels, will make the OFDM system suffered by the intercarrier interference.

随着未来系统的高移动速度,高载频和大子载波数所导致的长OFDM符号都将使系统的性能正越来越深地受到快速时变多径信道所带来子载波间干扰的影响。

The experimental results indicated that the longer the po uring intervallic time of the two kinds of molten metal and the higher the heigh t of the molten iron to pour into the tip of dipper teeth , the narrower its tran sitional zone will be, on the contrary, the wider its transitional zone will be.

用不同粘度的流体通过水力模拟的方法近似地描述了双金属斗齿过渡区的混合状态。试验结果表明:两种液体浇注的间隔时间越长,先浇入的铁液液面越高,过渡区越窄;反之,过渡区越宽。生产中为了保证过渡区双金属的结合质量,应控制较高的铁液液面高度及一定的双液间隔时间

Other name perfume plant, lysimachia foenumgraecum, vanilla, yellow vanilla, English name: Lavender.

熏衣草丛生,多分枝,常见的为直立生长,株高依品种有30~40厘米、45~90厘米,在海拔相当高的山区,单株能长到1米。

The technology of bearing and bearing steel and production level is crucial to the performance quality of lead plane, the performance demand of the respect such as efficient, energy-saving, environmental protection, macrobian life, high reliability is very high.

轴承和轴承钢的技术和制造水平对主机的性能质量是至关重要的,高效、节能、环保、长寿命、高可靠性等方面的性能要求非常高。

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