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The rule of growth and decline about main biochemical material (solubility protein, solubility sugar, SOD and gossypol IAA) contacting with stomatic embryogenesis showed that content of solubility protein and SOD activity was differed in the different period, being lower in earlier callus and reaching maximum in 120 day.

对陆地棉愈伤组织诱导及体细胞胚发生过程中的主要生化物质（可溶性蛋白含量、可溶性糖含量、SOD活性和IAA氧化酶活性）的测定表明，各个时期的可溶性蛋白含量、SOD活性是不同的，在愈伤组织形成初期较低，随着愈伤组织的生长及胚状体的形成，可溶性蛋白含量、SOD活性逐渐上升，在120d时达最大值；而可溶性糖含量在60d时有一个高峰值，在120d时达到最低值；IAA氧化酶活性在60d、120d时酶活较高，90d的酶活较低。

At the 10th day after cultivation, the visual pigment immunoreaction was suffusive in the whole cell membrane and apical process; while at the 30th and 40th day, it gathered at the membrane of apical process or one pole of the cells.

体外培养10 d时，视色素弥漫地分布于整个细胞膜及顶端突起；培养20 d时视色素逐渐向顶端突起或细胞的一端集中；到培养30、40 d时，视色素聚集于顶端突起或细胞的一端，呈现极性分布特征。

The performance of a disturbance covariance matrix is degradated in space time adaptive processing when it is estimated with secondary data contaminated by targetlike signals.

针对空时自适应处理中样本协方差矩阵受干扰目标污染时检测性能下降的问题，提出了一种基于知识的空时自适应处理（knowledge aided space time adaptive processing， KASTAP）方法。

The experimental results shows, if the ratio between MS-1 and OP-10 rangs from 1:1 to 3:l,and the total dosage of them is about 20% of Octamethylcyclotetrasiloxane (D4 ) in quality, we can obtain a kind of stable seeded emulsion of organic silicone modified acrylic ester emulsion. At the same time, if the ratio between MS-1 and Tetramethylammonium Chlorideis l:1.7,the total dosage is about 50% of D4 in quality; the ratio between MS-1 and Cetyltrimethylammonium Chlorineis 7:1, the total dosage is about 25% of D4 in quality,we can also obtain stable seeded emulsions. But if the complex emulsifier system is made of TMAC and OP-10, MS-1 and Peregal O or CTAC and Span-80, we can not synthesize any kind of satisfactory seeded emulsions.

实验结果表明：当MS-1与OP-10的质量比为1：1～3：1，总用量为八甲基环四硅氧烷(D_4)的20％左右时，可合成稳定性良好的硅丙种子乳液；MS-1与四甲基氯化铵的质量比为1：1.7，总用量为D_4的50％左右，MS-1与十六烷基三甲基氯化铵的质量比为7：1，总用量为D_4的25％左右时，亦能得到稳定的硅丙种子乳液；而TMAC与OP-10、MS-1与Peregal O以及CTAC与Span-80的复合体系作为乳化剂时均不能得到满意的硅丙种子乳液。

Did you know that to get to the moon it takes more power for that rocket to lift off and break way from the earth's pull of gravity thatn all the power it needs to travel to the moon and back to earth-half a million miles!

你知道不知道，在火箭奔月时，它起航和脱离地球引力时所用的能量，远远大于它驶向月球途中和返回地球时所用的能量，这可是50万英里啊！

When the teeth ratio of planetary gear is greater than 2 and transmission ratio is less than 1,the transmission will be speeded up from right to left.When the teeth ratio is less than 2,transmission will be slowed down from right to left,and when the teeth ratio is becoming close to 1,transmission ratio will trend towards infinity theorically.

当行星齿轮的齿数比大于2时，传动比小于1，传动自右到左为增速；当齿数比小于2时，传动自右到左为减速；当齿数比趋向1时，传动比理论上趋向无穷大。

Provided are carbide derived carbon materials prepared by thermochemically reacting carbide compounds and a halogen containing gas and extracting all atoms of the carbide compounds except carbon atoms, wherein the intensity ratios of the graphite G band at 1590 cm -1 to the disordered-induced D band at 1350 cm-1 are in the range of 0.3 through 5 when the carbide derived carbon is analyzed using Raman peak analysis, wherein the BET surface area of the carbide derived carbon is 1000 m 2 /g or more, wherein a weak peak or wide single peak of the graphite (002) surface is seen at 2 = 25 DEG when the carbide derived carbon is analyzed using X-ray diffractometry, and wherein the electron diffraction pattern of the carbide derived carbon is the halo pattern typical of amorphous carbon when the carbide derived carbon is analyzed using electron microscopy.

提供了得自碳化物的碳，其通过热化学反应碳化物化合物和含卤族元素的气体并提取除了碳原子之外的碳化物化合物的全部原子制备，其中当使用拉曼峰分析法分析该得自碳化物的碳时，在1590cm -1 的石墨G波段与在1350cm -1 的无序引发的D波段的强度比为0.3至5，其中该得自碳化物的碳的BET表面积是1000m 2 /g或更大，其中当使用X射线衍射法分析该得自碳化物的碳时，在2θ＝25°观察到石墨(002)面的弱峰或宽单峰，以及其中当使用电子显微法分析该得自碳化物的碳时，得自碳化物的碳的电子衍射图是代表无定形碳的晕图案。该发射体具有良好的均匀性和长寿命。可以使用比用于生产常规碳纳米管的方法更廉价的方法制备发射体。

Present the results of a prospective cohort study that was performed to investigate whether BMLs are associated with longitudinal changes in knee structure, such as change in tibiofemoral cartilage defects and tibial cartilage volume.

148例健康无痛且没有任何膝盖损伤或临床的膝关节骨性关节炎史的中年妇女（在基线时对其显性膝关节行磁共振成像扫描）2年后又行磁共振以评估是否基线时已有的BML对胫股软骨缺损和胫骨软骨量变化具有影响。结果：在基线时14.9％的妇女存在BML。

Due to the complexity of the cell jitter, the NonSynchronous Tining Recovery methods are currently not mature With the emphasis being given to the Class A CBR traffic, this paper analyzes the performance of the queueing delay and cell jitter at the source node and intermediate nodes, and discusses the Source Timing Recovery at the destination node in ATM networks Firstly, this paper presents a description of the cell jitter of CBR traffic, and gives the definitions of two kinds of cell jitter regarding the Source Timing Recovery for CBR traffic Then, by using exact mathematical models and analysis methods, this paper analyzes the impact of the factors, such as the capacity of the queueing buffer, the randomness, the deterministic nature and the correlation in cell arrivals of the background traffic sources, on the queueing delay and cell jitter performance of the CBR traffic through Statistical Multiplexitng To obtain an insight into the power spectral distribution and look for better schemes for the depression and filtering of the cell jitter, within the analyses we succeed deriving the power spectrum of the cell jitter for CBR traffic Hence, not only the power spectral distribution of the cell jitter can in the frequency domain be qualitatively understood, but also can the rms (root-meansquare) value of the cell jitter be quantitatively obtained so as to more accurately measure the amplitude of the jitter In the end-to-end performance analysis of the queueing delay and cell jitter, we propose a kind of quasi-periodic cell stream model to characterize the jittered CBR traffic, and present an initial queueing analysis of the CBR traffic following such a model at a generic intermediate node Additionally, we briefly discuss the buildout/playout and Source Timing Recovery functions of the destination node Finally, regarding the Source Timing Recovery of CBR traffic, this paper systematically discusses several important principles of the cell jitter filtering and depression reported in the literature, introduces several implementation schemes of the Source Timing Recovery e.

由于信元抖动的复杂性，非同步定时恢复方法目前还很不成熟。本文针对A类CBR业务流在ATM网络源节点和中间节点的排队时延和信元抖动性能，以及在目的节点的源定时恢复问题作了较为全面的研究。首先，文中描述了CBR业务流的信元抖动，并具体地给出了两种与CBR业务源定时恢复有关的信元抖动的定义。然后，采用了精确的数学模型和分析方法，有针对性地分析了业务背景中信元到达的纯随机性、确定性和相关性以及排队缓存器容量等因素对CBR业务流经过统计复用后的排队时延和信元抖动性能的影响。为了了解信元抖动的功率频谱分布和寻求更好的抑制和滤除抖动的方法，在性能分析中，我们成功地完成了CBR业务流信元抖动的功率谱分析，使得不但可以从频域定性地认识信元抖动的能量分布特性，而且还可以定量地求出信元抖动的均方根值(rms：root-mean-square)，以更为准确地衡量抖动的大小。在CBR业务流的多节点端-端排队时延和信元抖动性能分析中，我们提出了一种准周期性(quasi-periodic)信元流模型来描述感染了信元抖动的CBR业务流，并基于这一模型进行了CBR业务流中间节点的初步排队分析。

Results When/AO＜0.5,the surgical mortality increased significantly. However, when PA/BSA≥2.0,/BSA≥2.4 and PA/NPA≥0.6, the survival rate increased obviously. But, the conventional ratio of PA/AO and the situation of LPA and RPA was not proved to be a significant indicator of transannular repair of right ventricular outlet. There was not any significant relationship between postoperative PRV/LV and the diameter of LPA and RPA.

结果/AO＜0.5时，手术危险性显著增加；PA/BSA≥2.0时，/BSA≥2.4及PA/NPA≥0.6时，其手术安全性显著增加；是否需跨肺动脉瓣环补片主要与PA/BSA，PVA/BSA，PA/NPA有关；术后PRV/LV比值与PA及其分支发育情况无关，而主要受术中右心室流出道和PA疏通情况的影响。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷