螺旋

Double-helical gears are well suited for the efficient transmission of power at high speeds.

双螺旋 齿轮非常适合高效率传输功率高速。

In order to broaden the market to respond to market trends in 1994 and the introduction of advanced full-automatic cone double-helical extrusion unit, and injection molding machinery, machine tools and related.

为了拓宽市场领域响应市场潮流于 1994 年引进先进的全自动锥型双螺旋挤出机组，及注塑成型机械，和相关配套机床。

Depending on the method of manufacture, the gear may be of the continuous-tooth herringbone variety or a double-helical gear with a space between the two halves to permit the cutting tool to run out.

根据制造方法，齿轮可能会持续齿鱼骨型品种或双螺旋齿轮同一个空间之间的两半，以准许刀具，以一发不可收拾。

But under the insertion effect model, and since ssDNA does not have the double-helical struacutre of dsDNA, clinafloxacin does not show any fluorescence quenching effect.

在静电作用模式下，克林沙星与DNA骨架上的磷酸基团发生作用，其对ssDNA和dsDNA的猝灭程度应相等，而在插入作用模式下，ssDNA没有dsDNA的双螺旋结构，克林沙星应不对其发生猝灭作用。

But this molecular model shows how some proteins form loops in DNA when they chemically attach, or bind, at separate sites to the double-helical molecule that carries life's genetic blueprint.

就像槲寄生包绕在柔软的甘蔗蔓藤上，分子模型展示了某些蛋白在DNA 如何形成环状，当它们用化学键贴或者绑在携带生命遗传蓝图的双螺旋DNA分子。

Medical technicians equipped with the world's most advanced Siemens of Germany double-helical CT, Digital Subtraction Angiography machine, gastrointestinal multifunction digital machine, color ultrasound Aluoka Japan, the United States anesthesia machine and ventilator, automatic biochemical analyzer, and other large advanced equipment.

医技配备了目前世界上最先进的德国西门子双层螺旋CT、数字减影心血管造影机、多功能数字胃肠机、日本阿洛卡彩色超声、美国麻醉机和呼吸机、全自动生化仪等大型先进设备。

Stainless steel lined composite steel pipe is a common carbon steel pipe for the substrate to thin-walled stainless steel for the lining, the use of double-helical rolling temperature composite technology, so that the base pipe and liner pipe closely integrated, composite pipe has the best condition.

内衬不锈钢复合钢管是以普通碳钢管为基材，以薄壁不锈钢为内衬，利用双螺旋温滚压复合技术，使基管与衬管紧密结合，复合钢管呈现最佳状态。

Objective: To study the stress distribution of one segment type mono dowel implant with various length and diameter in alveolar bone.

目的 ：明确一段式单桩螺旋形种植牙的骨组织形态、硬度与应力的关系，指导种植体的设计与运用。

I fully believe that Obama's downward spiral of support to such ...

我完全相信奥巴马的向下螺旋的支持率达到如此。。。

Rigid PVC pipe production line is mainly used in the manufacture of the plastic PVC pipes with various tube diameters and wall thickness in the aspects such as the agricultural and nonstructural plumbing, cable laying etc. Thin set is composed of the conical twin-screw extruder, vacuum forming table , dragger, cutter, stirring up rack etc. The screws extruder and the extractor adopt the imported AC frequency employ the superior goods. The prime mover has the traction modes such as to claw, three-claw and so on. It may choose the saw blade cutting type or the planet cutting type. It is additionally attached with measuring apparatus and the intensifying device. The unit is of the reliable performance and high production efficiency. This company may allocate the special installation for the manufacture of the inner wall spiral coil and core ply blister tube set according to the clients requirements.

硬质PVC 塑胶管材出产线主要有阿谁与出产农用给排水、建筑给排水、线缆铺设等方面的各类管径、壁厚的塑胶PVC管材，该机组由锥形双螺杆挤出机、真空定形台、牵引机、翻料架等构成螺杆挤出机及牵引机采用进***流变频调速设置，真空泵以及牵引机电均采用优质产品牵引有二爪、三爪、四爪、六爪等牵引体式格局可选用锯片或者行星切割形式，另可计长及增厚装置，机组机能可靠，出产效益高，本公司可更具客户的要求，配备布置专用装置出产螺旋消音管以及芯层发泡管机组

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。