a plane curve formed by the locus of points equidistant from a fixed line and a fixed point not on the line .

1、

construction of a retrovirus vector containing pig-a gene and its packaging cell line

PIG-A基因逆转录病毒表达载体及包装细胞系的建立

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2、

construction of a retroviral vector containing rat rv-penk and its packaging cell line

大鼠前脑啡肽原基因逆转录病毒表达载体及产毒细胞系的建立

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3、

extrusion die design on plastic wire and cable

塑料电线电缆挤压式挤出模具的设计

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4、

black plastic wire covering with white printing

连同白色印刷的黑色塑料外线

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5、

methods for testing vacuum cleaner hose for durability and reliability (plastic wire reinforced)

真空吸尘器软管的耐热性及可靠性的试验方法（塑料线增强）

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6、

one plug, a connecting plastic wire, and another plug that floats.

一个塞子通过一根塑料绳连着另一个浮在水面上的塞子。

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7、

study on intelligent orthodontic appliance

智能口腔矫治器的研究开发

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8、

plaque index for evaluation of plaque of teeth with fixed orthodontic appliance

使用正畸菌斑指数评价固定矫治器患者的菌斑分布状况

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9、

reinforcement of the anchorage by the double transpalatal arch in the fixed orthodontic appliance

双腭弓在固定正畸中加强支抗的应用

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10、

primary study of laser welding in orthodontic appliance

齿科激光焊接技术在正畸临床应用的初步研究

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11、

the application of the transparent and tooth coloured fixed orthodontic appliance

透明及齿色固定矫治器的临床应用

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12、

however during the fixed-orthodontic appliance bonding, gingivitis often emerges because of plaque on the brackets, bend and arch wire.

但在固定矫治中，由于托槽，带环及弓丝可以引起更多的菌斑附着，因此常出现牙龈炎症。

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13、

objective to study the value of retaining septal and parietal band in surgical correction for tetralogy of fallot.

目的探讨保留隔、壁束技术在法洛四联症手术矫正中的价值。

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14、

second-order dynamic sub-grid-scale stress model with double coefficients

二阶双系数动态亚格子应力模型

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15、

large-eddy simulation of propane-air swirling diffusion combustion using som sub-grid scale combustion model

用二阶矩亚网格尺度燃烧模型对丙烷-空气旋流扩散燃烧的大涡模拟

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16、

solar, on the other hand, permeates our electricity system from gadget through grid-scale.

从另一方面说明，太阳能已经渗透我们的生活，无论是小装置还是大电厂。

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17、

i gave solution examples, such as monitoring change in grid scale, and global information grid (gig) and soa testing methodology.

我提供了一些解决方案示例，如监视网格规模变化和全球信息网格（GIG）以及SOA测试技术。

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18、

if you've been designing your room on a relatively large grid scale (e. g. 64 units), then any gaps will be apparent.

如果你设计房间时使用了不见得的比例（比如64单位），那么任何缝隙都会相当明显。

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19、

the high speedup is obtained, and the influence of balancing load, different grid scale to the speedup is discussed.

通过数值实验研究，讨论了负载平衡、不同的网格规模对加速比的影响。

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20、

indicatrix of optic monoaxial crystal

一轴晶光率体

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