螺旋面

The last but not least, it is also owning to the rapid development in computer science and information technology. Such as, some computational task, which previously must be executed by using super-computer, now can be carried out by personal computer, and at the same time, the network speed and band width of data bus and input/output equipment have increased several times. In addition, the improvement of the high quality graphic displaying is available. All these provide strong support for cryoEM high-resolution reconstruction study.

目前，在低电子剂量的情况下，冷冻电镜照片可以记录到3-4 〓的信息，使用冷冻电子显微镜进行高分辨三维重构工作，已经获得6.5-8〓高分辨率水平的结果，可以分辨出蛋白质的α螺旋、识别出蛋白质的β折叠等蛋白质二级结构；其次是，三维重构算法效能的不断提高，使得对二十面体取向和中心参数计算的可靠性大大提高；再次是，由于计算机和信息技术迅猛发展，例如，以往需要使用大型计算机的计算任务已经可以被一般的个人电脑完成，网络速度、数据总线和硬盘等I／O设备的带宽成倍增长，以及图像显示能力的提高都为冷冻电子显微镜高分辨三维重构技术提供了强有力的支持。

Nowadays, in the low electron dose condition, the information about 3-4〓 can be recorded on the cryoEM micrograph, and the high-resolution reconstruction using the cryoEM has reached 6. 5-8〓 levels. The reconstruction can reveal the protein α helical and recognise β fold secondary structure. Secondly, it is due to the development in 3D reconstruction method, which can be more efficient to determine the orientation and center parameters. The last but not least, it is also owning to the rapid development in computer science and information technology. Such as, some computational task, which previously must be executed by using super-computer, now can be carried out by personal computer, and at the same time, the network speed and band width of data bus and input/output equipment have increased several times. In addition, the improvement of the high quality graphic displaying is available. All these provide strong support for cryoEM high-resolution reconstruction study.

目前，在低电子剂量的情况下，冷冻电镜照片可以记录到3-4 〓的信息，使用冷冻电子显微镜进行高分辨三维重构工作，已经获得6.5-8〓高分辨率水平的结果，可以分辨出蛋白质的α螺旋、识别出蛋白质的β折叠等蛋白质二级结构；其次是，三维重构算法效能的不断提高，使得对二十面体取向和中心参数计算的可靠性大大提高；再次是，由于计算机和信息技术迅猛发展，例如，以往需要使用大型计算机的计算任务已经可以被一般的个人电脑完成，网络速度、数据总线和硬盘等I／O设备的带宽成倍增长，以及图像显示能力的提高都为冷冻电子显微镜高分辨三维重构技术提供了强有力的支持。

Ball bearing, test bed, carrier rocket, pneumatic cushion, tractor shoe, monkey driver, ball cock, automatic pecker, worm auger, decay daughter, sister metal, foreign tissue, getter pump, ghost image, heel block, heartman, downer, at farm, mosquito bomb, plastic stockings, nose cap, flu mask, first aid, fire engine, skid chain, sweet water, drug-fast, vital capacity I-bar, O-ring, T-square, octahedron, zigzag chain, gable roof, cross stitch, set square, arch dam, cam shaft, cone buoy, U-bolt,?

滚珠轴承，实验台，运载火箭，气压式缓冲器，拖拉机履带片，锤式打桩机，球阀，自动穿孔器，螺旋钻，裂变产物，同类金属，异体组织，抽气泵，叠影，垫块，心脏移植者，镇静剂，减肥中心，杀蚊弹，玻璃丝袜，防毒面具，卫生口罩，急救，救火车，防滑链，饮用水，抗药性，肺活量工字梁，环形圈，丁字尺，八面体，Z形链，人字屋顶，十字缝，三角尺，拱坝，凸轮轴，锥形浮标，U形螺栓三、注意语义分析？

A rotary separator of vacuum cleaner is composed of a dust collecting container, an opening-closing cover, and a separating plate dividing the dust collecting container into upper space and lower dust collecting chamber.

本发明属于一种真空吸尘器用的旋转分离装置，包括含有异物的空气流入其内形成螺旋流的集尘箱，可开闭集尘箱的盖，集尘箱内设有分离板，分离板与集尘箱的下侧内周面严密地结合，在分离板的下部形成集尘部；分离板是中心开有开口部的圆锥状，从上面的圆周向下倾斜形成引导部，引导部的最下端有引导异物流入到上述集尘部的流入孔。

The two mechanisms are used to modify the logarithmic-spiral slide curve. The example analyses show that the accuracy of this thesis's modified logarithmic-spiral mode is greatly enhanced.

对目前使用的对数螺旋滑移面进行了修正，实例分析表明，本文修正模式准确程度大大提高，不需经过大量试算。

The new approach of design of high contact ratio of face gear drive with good dynamic performance are based on application of profile crowning for both tooth surfaces and longitudinal crowning for helical pinion surface.

这一新办法的设计的联系比面对齿轮传动具有良好的动态性能的基础上的应用简介加冕为齿面和纵向加冕螺旋齿轮表面。

Analysis of interpolation error of NC machining for bevel gear space curved face

建立了由样条函数表示的螺旋锥齿轮副齿面接触点的求解模型———带区间的五元三次非线性方程组。

The main products are FW400-turbine grinder, QCF ultrafine mill, 605-wood flour mill, Hammer series of 56-grinder, SLH of 0.5-30 m double helix cone mixer, artificial agate, resin decorative plate vacuum Forming mixer, all kinds of solid-liquid filtration, separation, drying, grinding, pulse-bag filter Chen Shui-bian, bucket elevator, conveyor movements, vibration fine grading screen, flat screen rotary separation.

主要产品有FW400型涡轮粉碎机，QCF超细粉碎机、605型木粉粉碎机、锤片56型系列粉碎机，SLH型0.5-30m双螺旋锥形混合机、人造玛瑙、树脂装饰板材真空成型搅拌机、各种固液过滤、分离、烘干、粉碎、脉冲扁面袋除尘器、斗式提升机、升降输送机、振动精细分级筛、平面回转分离筛。

The resonance tank includes four p-n junction diode varactor pairs and a spiral inductor for each differential VCO, and a voltage- level-shift circuitry is utilized to decide proper DC levels for each pair of varactors.

此共振腔由四对PN接面式可变电容器及一个螺旋型电感所组成，并有一个电位偏移电路用来适当决定每对可变电容之偏压点。

This paper analyze the stability of soil-nail wall with limit balanced analytical method, and assume the slip surface, destroy surface as dual fold line, circular arc line, parabolic curve or log spiral curve etc.

本文采用极限平衡分析方法对土钉墙内部稳定性进行了分析，滑动面、破坏面的形状假定为双折线、圆弧线、抛物线或对数螺旋曲线进行了描述。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失