查询词典 diameter

ASpheric FeNi nanoparticles with average diameter of about 70 nm were obtained in the system of cetyltrimethyl ammonium bromide/H_2O,while most of the products were nanofilms/rods with the addition of cyclohexane; nearly monodisperse FeNi nanoparticles with average diameter of about 25 nm were prepared in the system of PEG/cyclohexane/H_2O.With the assistance of ultrasonic,a no-surfactant method to 8.5 nm FeCo nanocrystals with high Ms(＞200.5 emu/g)has been developed with economical FeCl_3·6H_2O as iron sources.

a以水合肼为还原剂在十六烷基三甲基溴化铵/H_2O体系中得到了平均粒径约70 nm的FeNi合金球形颗粒，当在此体系中加入环己烷时样品主要形态为纳米膜/棒；于PEG/环己烷/H_2O体系中制备了单分散性较好的平均粒径约25 nm的FeNi合金纳米颗粒，合金纳米颗粒粒径随金属离子浓度减小而减小。

For example, if your widest field eyepiece has a 40mm diameter field stop and you choose a decreasing increment diameter factor of 2 (which results in a 4x decrease in area size), you'll end up with eyepieces having field stop diameters of approximately 40mm, 20mm and 10mm.

例如，如果你的最广视野的目镜拥有40mm的视场光阑直径并且你选择间隔倍率为2，（导致4倍减少区域面积），你最终选择的这组目镜的视场光阑为40mm，20mm和10mm。

Of course, avoid duplicating focal lengths. For example, if you use a 31mm Nagler (with a 42mm field stop diameter), you would not need a 32mm Plossl (with a 27mm field stop diameter).

当然，也要避免焦距重复，例如你使用一个31mm的Nagler (42mm视场光阑)，你不需要一个32mm Plossl (with a 27mm视场光阑)。

And then, according to the above research, a portable instrument, based on PC-104 embedded technique, is designed for the inspection of the corrosions on oil storage tank floor. Some problems occurred during the testing, such as straightly walking、turning and installing of the instrument are solved. At last, the instrument is applied in the storage tank of ZhenHai chemical plant. It shows that the portable MFL instrument can detect 4mm diameter、0.5mm deep hole in 6mm thick plate and 8mm diameter、1.1mm deep hole in 12mm thick plate. The whole instrument is about 22kg heavy. The battery can keep on working for 6.5 hours. It is an efficient way for the testing of the corrosion on oil storage tank floor.

在上述实验研究的基础上，成功研制出一台基于PC104的便携式储罐底板腐蚀漏磁检测仪，解决了仪器使用过程中遇到的直线行走、转向和安装困难等关键问题，并在中国石化镇海炼化进行了应用，实验室和现场试验表明，该便携式储罐底板腐蚀漏磁检测仪能检出6mm厚钢板上φ4mm×0.5mm和12mm厚钢板上φ8mm×0.5mm的腐蚀坑，整体重量22kg，电池能连续工作6.5小时，很好的解决了储罐底板腐蚀的检测问题。

These features, along with high-precision processing technologies have helped to miniaturise these products. The micropump is 6.0mm in diameter and 24.0mm in length, the microvalve measures 3.5mm in diameter and 10.3mm in length. The products are small but ensure high functionality by incorporating fluid, structure and magnetic field analysis simulations. Development will contribute to enhanced miniaturisation, an indispensable prerequisite for portable device fuel cells. Through the optimal design of diaphragm operations, valve configuration to prevent fluid backflow, materials and layout, Alps has achieved the effective control of larger amounts of fluid in a smaller chassis for its micropump. The unit also employs low-voltage electromagnetic drive systems, which contribute to easy control and fuel cell system engineering.

这 2002：机床，入世是挑战更是机遇专家指出要加大我国数控机床研发力度加快普及型数控机床的发展漫话中国机床制造业的服务竞争中国铣床和加工中心市场的现状和展望国内外车床的技术水平和发展方向世界加工中心的生产、需求和发展动向国内外机床发展趋势世界数控系统发展趋势切削加工技术和数控机床的发展现代机床产品技术发展趋势我国高速加工技术现状及发展趋势利用先进制造技术提升汽车活塞加工水平瓶盖及瓶口模具上特殊螺纹的数控车削深孔的螺纹加工数控车床螺纹切削方法分析与应用磨削蜗杆砂轮的修整精密零件多台阶面磨削的新方法曲轴连杆颈的跟踪磨削工艺

We are the only company to master techniques of shield tunneling in petroleum and petrochemical fields. We have 3 sets of slurry balanced shield tunneling machine produced by Germany with world advanced technology, including 1 set of 2440mm inner diameter and 2 sets of 3000mm inner diameter, with total value of RMB113 million. We have the ability of construction in various complicated ground condition and annual completed tunnel will be more than 6km.

公司是石油、石化行业唯一掌握盾构施工技术的企业，拥有代表世界先进水平的德产泥水平衡式盾构机3台，其中1台内径为2.44米，2台内径为3米，总价值 1.13亿元，具备驾驭各种复杂地质条件的施工能力，每年可完成隧道盾构6公里。

Heat pipe materials used to do with pure copper heat pipe, length 12 cm, condensing side 2.8 centimeters in diameter, heat-absorbing end diameter of 4.5 centimeters, the overall weight 220 grams.

热管采用了用纯铜材料做的热管，长度12厘米，冷凝端直径2.8厘米，吸热端直径4.5厘米，整体重220克。

Of the fiber tested in the first phase , the researchers determined that a hook-shaped wire of regular strength 1.2 in.(30mm) long and 0.022in(0.55mm) in diameter, as well as a hook-shaped wire of high strength 0.015 in.(0.38mm) in diameter ,offered the highest strength and ductility .

该纤维测试在第一阶段，研究人员发现，一钩异型钢丝的经常实力1.2英寸长和0.022in （ 0.55毫米），直径，以及作为一个钩异型钢丝高强度0.015英寸（ 0.38毫米）在直径，提供了最高的强度和韧性。

The results also showed that when the wire diameter was fixed, implosions of arrays with larger diameter started earlier and had higher implosion speeds and wider plasma dispersion during implosions.

在丝阵直径不同，丝直径相当时，实验得到较大的丝阵直径内爆启动较早，具有较大的内爆速度，但等离子体在内爆过程中较分散。

In situations in which the use of a needle with a small inner diameter is highly effective (for example, in cases of metastatic lesions), the clinician should first consider using a needle with a smaller inner diameter to obtain the biopsy specimen because of the higher complication rate associated with large-bore needles.

使用小内径的细针是很有效的，临床医生应该首先考虑使用小内径细针获得活检样本，因为用粗孔针有高的并发症发生率。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

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