孔口

At this time, I found that the mantle cavity of its mouth in the shell formed an opening, through the information, I understand that the openings referred to as the "breathing hole", which is a gas and out of place.

这时，我发现它的外套膜腔会在壳口处形成1个开口，通过资料，我了解到这个开口称为&呼吸孔&，这是气体进出的地方。

Tap orientation for other differential pressure producing flow elements (such as venturis, flow nozzles, etc) shall, in general, follow the same orientation requirements as for orifice plates.

其它差压流量元件的取压口方位，一般来讲，应和流量孔板的要求一样，具有相同的方位。

Hongye Machinery Factory production of machinery and equipment are widely used in metal processing production: Qi mouth edge, flat crimping, both inside and outside vertical crimping, pressure Blankholder bones, stretch forming, anti-side, crossed, metal ring inside the edge volume, Hemming, sand at the end, both inside and outside the sanding, the appearance of Belt Line, both inside and outside the skin polished, red-shaped punching, vol cylindrical, straight seam welding, weld line pressure, girth welding, pressure ring weld, sheet metal coated oil, pressure spiral teeth, cars spiral teeth.

鸿业机械厂生产的机械设备广泛用于五金制品加工生产：齐口切边、平面卷边、垂直内外卷边、压边压骨、拉形、反边、划线、金属圈卷内边、包边、砂底、内外砂光、外表砂带线、内外去皮抛光、冲形冲孔、卷圆筒、直缝焊、压直线焊缝、环缝焊、压环形焊缝、金属片涂油等、压螺旋牙、车螺旋牙。

Toptie Welds already designed and produced the narrow gap welding machine, mechanical saddle joint welding machine, numerical controlled saddle joint welding machine, saddle hole cutting machine and strip overlaying subarc welding machine and so on. Those had already applied in some famous pressure vessel and boiler producer successfully and gained consistent appraise.

公司目前已有深坡口窄间隙埋弧焊机、机械马鞍形埋弧焊机系列、数控马鞍形埋弧焊机系列、马鞍形管孔切割机、埋弧带极堆焊等系列产品，并已在国内外著名压力容器、锅炉企业成功投入使用，获得客户的一致好评。

One is the wire-wound spring into cylindrical shape or rolling circle equipment into ready-to-wear pressureof ship'spennant bookbiding shape metal ring, having been set before even having the mouth perforatig, metal ring by hand or machine mode into the holes in the even of a commentary.

一种是将金属丝绕卷成圆柱弹簧形状或用卷丝圈设备卷成可直接穿压的长条形状金属环，装订时先在被订连本册的订口上打孔，再将金属环用手工或机器方式穿入孔眼内订连成册。

As a result of the ultra high wire mesh of roller its'hard small, network wall is too thin, competence, service life will be reduced.

由于超矮网线的网纹辊的网孔闭口小，网壁太不厚，耐磨亏本领较不差，搁置寿命也会贬矮。

The vise is made of two parts:vise body and swivel base.Horizontal swivel goes through 360°,45°angle tilts vertically.The accurate graduations and drilling on grinders and milling machines.

精密万向平口钳是由精密工具哦空气和转盘底座两部分组成，可借助刻度转盘在水平面360°范围内转动，在垂直平面上倾斜45°，可用于精密磨床、铣床等进行平面、斜面及倾斜一定角度的斜孔加工。

Further more, an improved scheme was proposed according to the characteristics of fluid flow in Lost Foam Process. The simulation and pouring test results show that the shrinkage defect at the top of the sheathing board casting could be eliminated by using top gating system.

根据干砂消失模铸造充型过程特点，提出了改进方案，数值模拟结果及浇注实验结果表明，采用顶注式浇冒口系统可以消除铸件顶部的集中缩孔缺陷，证明了模拟软件的正确性。

Aiming at the reservoir characteristics and serious sand production of the area,the precision micro-pore compound sand control screen pipe was used in the well completion,and good results were obtained.

针对该区块油藏特点和出砂严重的情况，通过室内分析、优选，在该区块几口水平井现场实施了精密微孔复合防砂筛管完井工艺技术，取得较好效果。

The chill block hanged sand and the riser were used to optimize the original casting process. Finally the shrinkage of the casting was eliminated.

采用挂砂外冷铁配合冒口使用对原方案进行了优化，最终消除了铸件中的缩孔缺陷。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。