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This model can estimate the size of the affected area in the event of a full-bore rupture by the diameter, the operating pressure and the length of pipeline Hazard area is directly proportional to the operating pressure raised to a half power, and to the pipeline diameter raised to five-fourths power, but inversely proportional to the pipeline length raised to a quarter power.

应用该模型可以通过管道直径、工作压力和管道长度计算出全口径断裂事故的影响范围。危险影响区域与工作压力的平方根成正比，与管道直径的5/4次幂成正比，与管道长度的1/4次幂成反比。

You can capture a standard screenshot-style thumbnail by simply entering the desired site's URL, or if you pay for a premium account, you have more options like specific screen capture or making a full-length thumbnail that shows the entire length of the page, from top to bottom.

只要你输入一个站点的URL，就可以得到这个站点的缩略图，如果你付费，还可以得到更多的服务，例如截屏或者截取整个站点缩略图或者特效页面。

Child growth and development in the eye, the eye grew from a small, axial length gradually increase, if the eyeball as a sphere, it has three axes, namely, longitudinal, transverse, sagittal axis, a sphere is the length of the three-axis equivalent.

儿童的眼睛在生长发育中，眼球由小长大，眼轴逐渐增长，如果将眼球看成一个球体，它有三个轴，即纵轴、横轴、矢状轴，一个正球体的三个轴的长度相等。

The unit of area is a product of a length times a length.

面积的单位是一个长度乘以另一个长度的积。

Then, a series of successful numerical simulations on the finite length inclined positively buoyant jets in uniform cross flows environment are developed. Based on the results from numerical simulations, some qualitative pictures of the complex three -dimensional mean flows are given. In terms of these pictures, the flowing behavior of the buoyant jets and the mechanism of end-vortexes generation are made a study. The change rules of end-vortexes and temperature and dilution on trajectory of jets, horse-hoof shape of buoyant jets on horizontal, the phenomenon of the jets touch wall, and the effects of diffuser length^ densimetric Foroude number % velocity ratio on buoyant jets are also given.

之后对均匀横流环境中的有限长线源型倾斜浮力射流进行了大量的数值计算，根据数值模拟的结果，绘出了一些复杂的三维图，据此探讨了其流动特性及端涡的产生机理，成功模拟了端涡现象及其发展过程，对轨迹线上沿程温度及稀释度的变化规律，倾斜浮力射流的马蹄形结构，浮力射流的贴壁现象，扩散器长度、喷口弗汝德数、流速比等对浮力射流的影响等问题均给出了有价值的结论。

The results showed that karyotypic type of Ya01-21was 2n=104＝100m+4sm（4SAT）, Chromosome length ratio of the longest and the shortest 4.25, the average arm-ratio 1.35, belonging to 2C type of chromosome. Molecule identified combine with chromosome studied indicated that Ya01-21 was a progenies of Erianthus arundinaceum. following the law of n+n; ITS identify showed that Ya01-21 is a progenies of Erianthus arundinaceum, the somatic chromosome karyotypic type of Ya01-36 was 2n=132＝130m+2sm, Chromosome length ratio of the longest and the shortest 3.94, the average arm-ratio 1.27, belonging to 2B type of chromosome, combining the advance of characters the law of 2n+n can be resumed.

研究结果表明，崖城01－21的体细胞染色体核型公式为2n＝104＝100m+4sm（4SAT），最长与最短染色体的长度比为4.25，平均臂比1.35，染色体属2C型，分子鉴定结合细胞学研究认为其为斑茅的真实后代，其染色体遗传为n+n；崖城01－36经ITS签定为真实杂种，其体细胞染色体核型公式为2n＝132＝130m+2sm，最长与最短染色体的长度比为3.94，平均臂比1.27，染色体属2B型，结合其性状的进展，推断亲本向其传递染色体可能以2n+n的方式进行。

Through Hilbert transform, a signal's plane trace can be get. There are two frequencies in the tested signal, so the signal's plane trace may be looked as the track of the out pole's end when two poles rotate around parallel axles. Using the knowledge of motion synthesis in theory mechanics, a formula to describing the change of plane trace's step length and angle for two-frequency be get. So we may prolongate the tested signal's plane trace from the echo's initial arriving moment, and get a certain length of the signal's prolongation.

通过Hilbert变换可得到测试信号的平面迹线，测试信号中只含有两个频率成分，视为双频信号，双频信号的平面迹线相当于两连杆绕平行轴转动时外杆杆端迹线，利用理论力学中运动合成和瞬心知识，推导出双频信号平面迹线步长平方满足余弦线性复合函数，而迹线转角可视为线性变化，据此可对回波到来之前的测试信号平面迹线作延长，得到一定长度的信号延展段，信号延展段与实测段作差可得到一次、二次回波的第一个波峰值。

By use of site mutation strategy and PCR technology, we obtained the gene P12X3C that includes full length P1, 2A, 3C and a part of 2B and 3B and the gene P12X3C3D that includes full length P1, 2A, 3C, 3D and a part of 2B and 3B. After being digested by restriction enzyme respectively, the gene P12X3C and the gene P12X3C3D were cloned into the pcDNA3. 1 and pTARGET expression vector that were digested by the same enzyme. Recombinant plasmids were checked by restriction enzyme analysis and nucleic acid sequencing. Further more, recombinant plasmids were transfected into BHK-21 cells by using lipoid. The proteins of foot-and-mouth disease virus , which were expressed in BHK-21 cells, were confirmed by sandwich-ELISA and fluoroscopy, and the capsid of FMDV was tested by electron microscope. In order to evaluate enhanced immune response of guinea pigs against FMDV, DNA vaccines which were designed to produce viral capsids lacking infectious viral nucleic acid and contained the gene P12X3C and the gene P12X3C3D were injected respectively with FMDV 3D protein which was expressed in Pichia Pastoris Secreted expression System and purified or with pcDNA3. 1/IFN which includes the gene IFN-α of cattle. Subsequently, Recombinant plasmids were injected to cattles with or without pcDNA3. 1/IFN. Anti-FMDV antibodies were detected by ELISA, and the T lymphocyte proliferation response was tested by MTT assay, neutralization antibodies titers were analyzed by micro-neutralization assay.

为研制带有O型口蹄疫病毒(Foot-and-Mouth Disease Virus，FMDV)China99株结构蛋白基因及多个非结构蛋白基因的DNA疫苗，本研究通过定点突变方法和PCR扩增方法，获得包含有FMDV China99株结构蛋白P1、非结构蛋白2A、3C以及部分2B、3B编码基因的片段P12X3C和包含有FMDV China99株结构蛋白P1、非结构蛋白2A、3C、3D以及部分2B、3B编码基因的片段P12X3C3D，将获得的基因片段直接/酶切后与同样处理的真核表达质粒连接，分别得到重组质粒pcDNA3.1/P12X3C和pcDNA3.1/P12X3C3D、pTARGET/P12X3C3D；对重组质粒进行序列测定、分析，并将重组质粒分别转染BHK-21细胞，通过双抗体夹心ELISA方法和间接免疫荧光标记方法检测细胞中FMDV抗原的表达，用电子显微镜观察病毒空衣壳的组装；为评价重组质粒作为DNA疫苗对实验动物及本动物的免疫效果，将重组质粒经肌肉注射方法接种豚鼠，并与酵母表达的纯化FMDV China99株3D蛋白及带有牛α干扰素的真核表达质粒pcDNA3.1/IFN分别/同时免疫，第二次免疫后第三周豚鼠攻以1OOID〓或1000ID〓的O型FMDV China99株；随后将质粒pcDNA3.1/P12X3C、pcDNA3.1/P12X3C3D与带有牛α干扰素的真核表达质粒pcDNA3.1/IFN同时免疫牛，三周后经牛舌皮攻以10〓ID〓的O型FMDV China99株。

By use of site mutation strategy and PCR technology, we obtained the gene P12X3C that includes full length PI, 2A, 3C and a part of 2B and 3B and the gene P12X3C3D that includes full length PI, 2A, 3C, 3D and a part of 2B and 3B. After being digested by restriction enzyme respectively, the gene P12X3C and the gene P12X3C3D were cloned into the pcDNA3.1 and pTARGET expression vector that were digested by the same enzyme. Recombinant plasmids were checked by restriction enzyme analysis and nucleic acid sequencing. Further more, recombinant plasmids were transfected into BHK-21 cells by using lipoid. The proteins of foot-and-mouth disease virus, which were expressed in BHK-21 cells, were confirmed by sandwich-ELlSA and fluoroscopy, and the capsid of FMDV was tested by electron microscope. In order to evaluate enhanced immune response of guinea pigs against FMDV, DNA vaccines which were designed to produce viral capsids lacking infectious viral nucleic acid and contained the gene P12X3C and the gene P 12X3C3D were injected respectively with FMDV 3D protein which was expressed in Pichia Pastoris Secreted expression System and purified or with pcDNA3.1/lFN which includes the gene IFN-a of cattle. Subsequently, Recombinant plasmids were injected to catties with or without pcDNA3.1/IFN. Anti-FMDV antibodies were detected by ELISA, and the T lymphocyte proliferation response was tested by MTT assay, neutralization antibodies liters were analyzed by micro-neutralization assay.

为研制带有O型口蹄疫病毒(Foot-and-Mouth Disease Virus，FMDV)China99株结构蛋白基因及多个非结构蛋白基因的DNA疫曲，本研究通过定点突变方法和PCR扩增方法，获得包含有FMDV China99株结构蛋白P1、非结构蛋白2A、3C以及部分2B、3B编码基因的片段P12X3C和包含有FMDV China99株结构蛋白P1、非结构蛋白2A、3C、3D以及部分2B、3B编码基因的片段P12X3C3D，将获得的基因片段直接／酶切后与同样处理的真核表达质粒连接，分别得到重组质粒pcDNA3.1／P12X3C和pcDNA3.1／P12X3C3D、pTARGET／P12X3C3D；对重组质粒进行序列测定、分析，并将重组质粒分别转染BHK-21细胞，通过双抗体夹心ELISA方法和间接免疫荧光标记方法检测细胞中FMDV抗原的表达，用电子显微镜观察病毒空衣壳的组装；为评价重组质粒作为DNA疫苗对实验动物及本动物的免疫效果，将重组质粒经肌肉注射方法接种豚鼠，并与酵母表达的纯化FMDV China99株3D蛋白及带有牛α干扰素的真核表达质粒pcDNA3.1／IFN分别／同时免疫，第二次免疫后第三周豚鼠攻以100ID_(50)或1000ID_(50)的O型FMDV China99株：随后将质粒pcDNA3.1／P12X3C、pcDNA3.1／P12X3C3D与带有牛α干扰素的真核表达质粒pcDNA3.1／IFN同时免疫牛，三周后经牛舌皮攻以10~4ID_(50)的O型FMDV China99株。

Combination Rodes: A good compromise between all-nylon or all-chain rode is to use a short length of chain (6'-30') connected to the anchor, with a long length of three-stand nylon line connected to the chain.

锚链和锚缆绳结合型：有一个好的折衷的方法就是用一截短短的锚链(6'-30')连接到锚上，然后用比较长的&三股&尼龙绳接到锚链上。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。