They stacked rocks with center holes (tube or doughnut shaped) from the surface to the deep stone layer as a guide for their drills (similar to today's guide tubes).
管状或中空管状的中心孔从地表到深石岩石层放满石头，以作为铁转的探头，作用类似今天的导管。
The cells produce a protein structure shaped like the plastic tube, which dissolves.
这些细胞产生出和塑料管同样形状的蛋白结构，而塑料管则分解了。
The team's preferred concept, the SUGAR Volt, is a twin-engine aircraft with hybrid propulsion technology, a tube-shaped body and a truss-braced wing mounted to the top.
该团队最青睐的概念——SUGARVolt——这种双发的飞行器具有氢推进技术、管状外形机身和由桁架支撑并固定于飞机顶部的机翼。
The Volt is a twin-engine concept with a hybrid propulsion system that combines gas turbine and battery technology, a tube-shaped body and a truss-braced wing mounted to the top of the aircraft.
Volt是一款结合燃气涡轮以及电池技术的推进系统，管状机身以及一个由两个支撑连接飞机顶部的机翼的双引擎概念机。
Goodyear built in 1961 this 24-foot-wide model of a rubber doughnut-shaped space space station, which, perhaps not surprisingly, looked like an inner tube.
1961年，固特异曾建造了一个7米宽的圆环橡胶空间站模型。以固特异所从事的老本行来看，这玩意就像是一个轮胎内胎也没什么好惊讶的。
The RDZ consists of a reduced diameter tube section mating to a specially-shaped ceramic tile.
RDZ包含了一个与异形瓷砖搭配的直径方向缩减的管道截面。
The cracking causes of a U shaped tube heat exchanger were analysed in material compositions, microstructure, properties with the help of optional microscope and SEM.
借助光学和扫描电子显微镜，从材料成分、微观组织和性能角度，分析了U形管换热器开裂原因。
A gymnasium consists of space truss structure and shopping basket shaped truss structure, and the T-type rigid connection joint is adopted when the circular tube is intersected.
某体育馆是由网架结构和落地提篮形桁架组成的杂交结构，圆管相交采用T形相贯刚接节点。
A part that operates by sliding, as the U-shaped section of tube on a trombone that is moved to produce various tones.
型滑管：靠滑动操作的部分，如长号上u型的管子部分，拉动它可以产生各种声调。
The wine son then dismantles the burden of small short horseback, from in take out a tube-shaped vessel, also have the Huang Li Mu, Moncler Veste, square, the box.
酒儿则是取下小矮马背上的包袱，从里面取出一个竹筒，还有一个黄梨木方盒子。
Specifically, roll-fed packaging is sterilized and shaped into a tube.
具体来说，轧辊馈包装灭菌，并逐渐形成一个筒。
The strength analysis of a drop-shaped tube is resolved into the following problem: axial compression together with a plane state of strain with uniform internal pressure.
把滴形管的强度分析问题分解为：沿管轴线方向的压力问题与管沿周线方向均布压力的平面应变问题的叠加。
An instrument used to measure pressure. A manometer consists of a U-shaped tube partially filled with a liquid that can vary in specific gravity from 1.0 (water) to 13.57 (mercury).
测量压力所用的一种仪器，压力计由部分装有相对密度在1.0(水)至13.57(汞)范围内的液体的U形管组成。
The packer and telescopic tube are designed to a whole body and V-shaped inflatable graphite sealing ring is used to form the sealing system, ensuring the sealing performance of.
它将封隔器与伸缩管设计成一体，采用V形膨胀石墨密封圈组成密封系统，确保伸缩管热力伸长时封隔器的密封性。
To study the effect of process parameters on the hydroformed T-shaped tubular parts, a new criterion to estimate the formability of T-shaped tube hydroforming is proposed.
为研究主要工艺参数对T型管液压成形性能的影响，本文提出一项综合评价指标，以评定T型管的成形质量。
Plymouth Tube COMPANY Description Plymouth Tube is a manufacturer of round and specialty shaped tubing, extruded and cold drawn shapes in Carbon, Alloy, Stainless Steel and Nickel Alloys.
普利茅斯钢管生产圆形与异形钢管以及热挤、冷拔特殊型钢，所生产的钢种有碳钢、合金钢、不锈钢与镍基合金钢。
The structure design of a fiber Bragg grating (FBG) sensor based on the C-shaped elastic tube has been put forward.
设计了一种基于C形弹性管的光纤布喇格光栅传感结构。
The inside of the sleeve is shaped to match the cross section of the tube (12) and the outside has a non-circular shape.
套筒的内部被成形为与管子(12)的横截面相符合并且其外面具有非圆形形状。
Considering practical ring shaped heating furnace of a certain company, a threedimensional heat transfer mathematic model for tube rounds heating process was established.
针对某公司环形加热炉的实际生产情况，建立了管坯加热过程的三维传热数学模型。
The welding roller carrier can also complement the manual weld or act as a device for detecting and assembling the tube-shaped workpiece.
本焊接滚轮架还可配合手工焊或作为检测、装配圆筒体工件的设备。
The invention relates to an indirect assembly concrete-filled steel tube combined special-shaped column and a production method thereof.
本发明涉及一种间接装配式钢管混凝土组合异形柱及其制作方法。
This is a kind of steam flow direction side type condenser branch shaped tube bundle module, which belongs to mechanical skill field.
一种汽流向侧式凝汽器树枝形管束模块，属于机械技术领域。
It described die structure and the process of automatic punching. It is a typical example of automatic operation and an typical instance of side-punching hole for tube-shaped parts.
叙述了该冲压模的模具结构和自动冲压的过程，是冲压工艺实现自动操作的一个典型实例，也是管类零件侧冲孔实现自动操作的一个典型实例。
The invention discloses a method for preparing specially-shaped titanium dioxide nano-tube films with changeable pipe diameter along the axial direction by an anode oxidation method.
本发明公开一种采用了阳极氧化法制备其管径沿轴向有变化的特殊形貌二氧化钛纳米管薄膜方法。
The utility model relates to a shaped shell-and-tube evaporator for a small-sized refrigerator, which belongs to the field of refrigeration technology.
本实用新型涉及一种小型冰箱异形管壳式蒸发器，属于制冷技术领域。
The invention relates to a double-rectangular tube restraining type assembled buckling-restrained brace with an H-shaped cross section, belonging to the technical field of structural engineering.
双矩形管约束型H形截面装配式防屈曲耗能支撑，属于结构工程技术领域。
Aiming at the improvement of the precision of Coriolis Mass Flow meters, this thesis develops a new tube-shaped device and measures the phase difference with a digital signal-based measurement.
本文从提高科里奥利质量流量计的灵敏度着手，提出了一种新的管形设计方案，还采用了基于数字信号处理的测量方法来测量相位差。
The utility model is composed of a tube body (1), a funnel-shaped outlet (4) and a funnel-shaped inlet (7). A spring (2) is buried in the wall of a tube body.
本实用新型是由管体(1)、漏斗形出口(4)、漏斗形入口(7)组成，管体壁内埋有弹簧(2)。
The utility model is composed of a tube body (1), a funnel-shaped outlet (4) and a funnel-shaped inlet (7). A spring (2) is buried in the wall of a tube body.
本实用新型是由管体(1)、漏斗形出口(4)、漏斗形入口(7)组成，管体壁内埋有弹簧(2)。
应用推荐