圆环

The two operating handles each had a trigger, and the graticule wasa black circle.

两个操作手柄各有一个扳机，瞄准分划是个黑色的圆环。

Friction coefficients and lubricative mechanics of Al-Fe-V-Si heat resistant aluminum under four conditions were researched by method of annulus compression, without lubricant, but in the presence of pure aluminum, graphite+oil, pure aluminum+graphite+oil.

摘 要：采用圆环压缩法检测Al-Fe-V-Si系合金在喷射沉积高温时变形的摩擦因数，研究未加润滑剂、加石墨+机油润滑、加纯铝润滑、加纯铝+石墨+机油润滑4种条件下的摩擦因数随变形温度变化的情况，并探讨其润滑机理。

He had supporting roles in the made for television film Ring of the Nibelungs (2004), and in director Mira Nair's 2004 Vanity Fair, although his scenes in the latter were deleted, and only appear on the DVD version.

他有在的支持的角色做了为电视Nibelungs (2004 的)影片圆环，和在Mira Nair 主任的2004 年虚荣市场，虽然他的场面在后者被删除了，并且只出现在DVD 版本。

Then the viral samples were pured and observed with electronic microscope. They were 17nm in diameter.

由此说明，分离出的病毒为猪圆环病毒2型，并命名为PCV2JL01和JL02株。

The properties of microcapsules,including the surface morphology,the size and distribution were characterized using optical photographic microscopy.Surface tension of the surfactants and interfacial tension of oil /water for sodium dodecylbenzene sulphonate solutions at different concentrations were determined by ring method.

采用光学显微镜表征微胶囊粒径大小及分布、表面形貌等性质，用圆环法测定表面活性剂溶液的表面张力和不同十二烷基苯磺酸钠浓度水溶液/环氧树脂的界面张力，探讨了表面活性剂种类和浓度对MUF环氧树脂微胶囊粒径和形成过程的影响。

In order to get high gain, narrow main lobe and low sub-lobe antenna pattern, we synthetize the array pattern with Chebyshev method and Unconstrained method seperately.

本文分别采用切比雪夫综合方法和闭式综合法，对直线阵和圆环阵进厅综合，以求得到增益相对高、主瓣窄，副瓣电平低的阵列方向图。

This turnable can be rotated in its own plane about its axis A. and is mounted on gimbals within a ring.

此内转台可在其自身平面内绕其轴线 A转动，并装在一个位于圆环里面的常平架上。

The author's main research work was focused on UCA, analyzed its beam-forming property with the array's radius and the number of antennas.

本文研究工作主要针对均匀圆环阵展开，分析了UCA的形成波束随天线阵半径和阵元数的变化规律。

Out of all the kitchen installations, undermount kitchen sink which is also called recessed sink is the trickiest to install since it eliminates the upper ring of the sink.

出于所有厨房设施， undermount也称被隐藏的水槽的厨房水槽是最棘手的安装的，因为它消灭水槽的上部圆环。

It is divided into three parts: In Part 1, based on mumerical simulations with the pseudo-spectral method, we introduced some new concepts such as the response speed of soliton interaction, the symbol correlation range, etc., and simplified the evolution problem of general soliton sequencies into the evolution problem of finite equivalent classes of words on a unoriented circle, and then gave out the count formula of the equivalent classes by Pó1ya theorem.

全文分三个部分：第一部分以利用拟谱方法所做的大量数值模拟为基础，分析光纤孤子通信系统中一般编码孤子序列的演化性质，提出孤子相互作用传递速度概念，通过考察通信系统的实际情况，引入码元关联长度K，把一般编码孤子序列的演化问题归结为无定向圆环上有限个不等价码字的演化问题，最后利用Pólya定理解决了不等价码字的计数问题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。