Through the new structure of adding feedback cavity on valve core, adjustment windage is less than 10 percent.
通过这样的新型结构——在阀芯上增加反馈腔，使其调压偏差不超过10%。
At left genuflex position and L3/4 or L2/3 intervertebral space in each patient, the needle entered following anesthesia from the intervertebral space into the epidural cavity, and needle core was extracted when feels nothing. Clear cerebrospinal fluid was effluent and collected for further use.
每例患者取左侧屈膝位，定位L3/4或L2/3椎间隙，麻醉后由椎间隙进硬膜外腔，再继续进针至有落空感时抽出针芯，有清亮脑脊液流出，留取脑脊液标本送检。
The instability originated in the upper R_B-like convection zone develops to larger region with the increase of Grashof number, and the number of non-axi-symmetric circulations decreases. When Grashof number exceeds another critical value, cooling air may invade the cavity and flow toward the shroud, the circulations decrease to one pair occupying the whole cavity in radial, thus these two zones are merged into one. The core structures in the cavity rotate against the disks, while the structures keep no change at the case of periodic oscillatory flow. With the Grashof number rises, the flow undergoes stable, periodic, periodic with cool air invading, quasi-periodic and ultimately to chaos.
离心浮升力是造成非等温轴向通流旋转盘腔内流动不稳定的主要因素，而哥氏力的存在加剧了流动不稳定性，导致流场失稳提前发生，而且在哥氏力的作用下流线发生偏转，盘腔内r-θ面出现了旋向相反的对涡，流动结构更加复杂化；随离心浮升力的继续增加，r-θ面的对涡减少，当其超过某一临界值后部分冷流体侵入盘腔，对涡减少至一对，而且沿径向充满整个盘腔；此后随离心浮升力的增加对涡的数量不再变化；r-θ面的对涡相对于盘面周向移动，但是形状基本保持不变。
The gate may be cut either on the core inset (a or in the cavity inset
这个浇口可以加工在型芯上或加工在型腔上。
The sleeve, which is a sliding fit in the cavity insert and on the core pin, is fitted at its rear end to the ejector assembly.
这个顶管装在顶料组合的后端，和型腔镶块以及型芯滑配。
To different mould, effect of heat transfer coefficient between inner sleeve and cooling medium and thickness of core refractory on final position of solidification, the highest temperature of inner sleeve against cooling medium, and shrinkage cavity and porosity are compared.
文摘：对空心钢锭凝固过程的温度场进行了有限元分析，对不同锭型结构的芯部换热系数、耐火材料厚度对最终凝固位置、内筒壁最高温度及缩孔疏松的影响进行了对比，并讨论了耐火材料典型部位的温度随凝固时间的变化。
As the plastic parts for high rectangular plastic parts, plastic parts and the core of the contact area is too large, thus stripping, the plastic parts of the core of the package bear too large and difficult to top, so this internal mold Intake device is, in stripping, the use of atmospheric pressure, breaking the cavity of the vacuum environment for the plastic parts to the Top
此模具旳特点在于：1、悬挂式定位拉杆减轻了模具总体旳重量。2模具内型芯和型腔都布置了多条冷却水道，以便塑件旳冷却。3由于此塑件为高矩形塑件，塑件与型芯旳接触面积过大，从而在脱模时，塑件对型芯旳包紧力过大，不易顶出，因此，此模具内设有进气装置，在脱模时，利用大气压力，打破型腔内旳真空环境，以便塑件旳顶出
Firstly, the aluminum alloy lighting furring which is also the core of the production has the following characteristics: firstly, the lighting furring is also the nailing furring carrying the ceiling decorative board; secondly, the cavity can contain the light tube with nice lighting effect; thirdly, the electric accessory case on the top does not take extra space with the electric accessories and lead line in it.
该成果的核心--铝合金光槽龙骨，具备以下特点：（1）该光槽龙骨兼做覆面龙骨，承载吊顶装饰板；（2）其形成的腔体，可容纳照明光源，具有良好的光学效果；（3）其上部形成电器附件盒，将电器附件及导线置于其中，不另外占用空间。
It is provided with rapid opening and closing, and convenient and safe usage, which comprises a lock body with handle (1) and a lock head (2), characterized in that at one side of the lock body (1) there is a shaft pore (7), which is combined with the rotary shaft on the lock seat to form the rotary mechanism; at the other side there is a lock port (8) with hump surface (9), which is mated with the lock tongue (16) on the lock head (2) to form the locking mechanism; at the oblique upside of shaft pore (7) on the lock body there is a hollow cavity with lock core, in which there is a lock strip (6) fixed on the lock seat which is combined with the hollow cavity with lock core to form the locking and limiting mechanism.
提供一种开启关闭轻快，使用安全方便的超低温冷冻柜的柜锁。包括带手柄的锁体(1)、锁头(2)，其特征是锁体(1)一侧有一个轴孔(7)，与固定在柜门上的锁座的转轴构成转动机构；锁体(1)另一侧有一个带有驼峰(9)曲面的锁口(8)与锁头(2)上的锁舌(16)啮合，构成锁紧机构；锁体(1)的轴孔(7)斜上方有一个装有锁芯的空腔，空腔内装有一个固定在锁座上的锁挡片(6)与装有锁芯的空腔组成锁体锁止和限位机构。
Reason in cavity and core plate: determining the dimensions of the plates intention and rigid check.
在腔的原因和核心板：确定板块的意图和僵化的检查方面。
Square core/cavity block design.
广场核心/设计类阻挠。
In experiment, output modes of hundred-micron core diameter fiber laser are controled by the hole in the laser cavity, and the effects to beam quality are researched with holes of different diameters.
实验中，采用腔内小孔法对百微米芯径光纤激光器的输出激光模式进行控制，研究了不同孔径对输出激光光束质量的影响。
TAKE EXTRA CARE WHEN CORE/CAVITY IS STICKING!
产品粘动/定模时要格外注意！
There are two structure characteristics were put forward, including the integer side core-pulling mechanism of the half block with mold cavity and the demoulding mechanism of the pin-point gate using single parting surface.
提出了型腔哈夫块实现整体侧抽芯和点浇口采用单分型面脱模的结构特点。
The design method of plastic strcuture is mainly introduced. The selection of the sidewall thickness, the decision of the mould cavity number, the selection of injection machine, and the designing process of the parting plane, the exhaust system, cool material cave and pin gate are stated. The design structure characteristics of box cover and parting plane with pin gate style, and side core-drawing structure.
重点说明了电器盒的塑件结构的设计包括分析和阐述了电器盒塑件的壁厚选择及工艺特点；针对塑件的工艺特点进行模具的设计包括模具型腔数目的确定，注塑机的选择，模具分型面、冷却系统、浇注系统、分型抽芯机构等的设计过程。
ABSTRACT: This design elaborated the patch cord plank outer covering plastic parts injection mold design process, including the cavity quantity and deciding the arrangement of the cavity, selecting the machine for injection, the feed system design, choosing the molding boards and their standardized parts, design core-pulling outfit and formed accessories and so on, the basically design flow and the process of injection-mold design based on Pro/E was illustrated.
摘 要：本次设计阐述了插线板外壳塑料零件的注射模设计过程，包括型腔数量和布局的确定、注射机选择、浇注系统设计、模板及标准件的选用、脱模及抽芯机构的设计、成型零件的设计等，阐述了采用Pro/E进行注塑模具设计的基本流程以及模具各部分结构的设计过程。
To this diecasting die cavity, by using inside notch core-pulling mechanism, cope with the core-pulling problem of inside notch parts; adopting insert block structure is favourable to the snapout of gas in the course of diecasting, which solves the problem of cast air holes and conspicuously increase the qualified rate and economic benefit of diecasting.
该模具型腔采用内凹抽芯机构，解决了内凹零件的抽芯问题；采用镶块结构，有利于压铸过程中气体的排出，解决了铸件气孔问题，显著提高了压铸件的合格率和经济效益。
Modern CAD systems can support this with calculating a split line for a defined draft direction, splitting the part in the core and cavity side and generating the run-off or shut-off surfaces.
现代CAD系统可以支持该设计，先针对确定好的画图方向计算出一条分模线，将零件分成模芯和型腔两侧，并生成出流表面和截流表面。
Based on this pattern, we create a sand core and cavity.
根据这个模式，我们创建了一个砂芯和型腔。
They built the tool once with 1 degree draft and the parting line of the cutouts on the inside of the part just like I wanted. Now they want to double or quadruple the draft and move the parting line to the middle of the part which will give us a sharp edge to the outside of the part. All because we want to switch core and cavity.
他们曾制作了1 倍的牵伸斜度和裁断块的分开线在部件的里面的模具，正如我期望的那样，现在他们打算2倍或4倍提高牵伸率，并把分开线移到部件的中间位置，这样将使我们的部件的外侧有更锋利的刃边，因为我们想要关闭模心和模腔。