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Considering gas-solid flow in annular space and BoYun Guo's hydrodynamic parameters model, For aired underbalanced drilling, combined with the minimum energy Angel law and based on the mininum gas injection scale at the key points, it is established a bottom-hole pressure model for gas-solid two phase stream; meanwhile, calculated the downhole depth of the Downhole-Deployment-Valves; and then fabricated the corresponding calculation software. For streamingly underbalanced drilling, it is fully given a step-by-step solution based on analysis from the relationship of various wellbore pressures at the course of underbalanced drilling as well as from the streaming behavior in different wellbore sections, adding consideration on multiphase stream pressure drop and Downhole-Deployment- Valve into account, it is of common application for development wells.

对于气体欠平衡钻井，考虑环空为气固两相流，参考BoYun Guo的流体力学参数计算模型，结合Angel的最小动能法标准，从满足关键点处的最小注气量入手，建立了气固两相流的井底压力计算模型，同时对套管阀的下入深度进行了计算，并利用VB语言编制了相应的计算软件；对于液体欠平衡钻井，考虑环空为多相流，在充分分析欠平衡钻井井内基本压力关系的基础上，从环空多相流压降分析入手，通过对井筒内各段的流态分析，逐段求解。

Cast the underwater concrete with a soccer ball; the volume of the first batch of concrete is to be calculated, ensuring that the depth of the tremie embedded in the concrete for at least 1m and can fill the apertures at the bottom.

采用砍球法浇筑水下混凝土，首盘混凝土需用量由计算确定，保证首批混凝土浇筑后导管埋入混凝土中的深度≮1m，并能填充导管底部间隙。

Midwifery were quickly placed palace at the bottom with one hand, thumb in the anterior, posterior wall of the remaining four means for Palace at the end of even a massage by massage the uterus starts to contract, can be placed in the vagina before the one hand fist fornix, to withstand the uterus anterior abdominal wall push the other hand since the back wall of the uterus, so that the uterus flexion, the relative pressed his hands to massage the uterus.

助产者迅速用一手置于宫底部，拇指在前壁，其余4指在后壁，作均匀有按摩宫底，经按摩后子宫开始收缩，亦可一手握拳置于阴道前穹窿，顶住子宫前壁，另一手自腹壁按压子宫后壁，使子宫体前屈，两手相对紧压子宫并作按摩。

The model is unusual elements reverse zone feature, namely that the head halo at the bottom with the sequence, the tail halo at the top with the sequence; Comprehensive analysis is the head halo of lower ore body overprinting on the tail halo of upper ore body.

该模型具有异常元素逆向分带的特征，即前缘晕元素出现在分带序列的下部，尾晕元素出现在分带序列的上部，综合分析认为是下部矿体前缘晕叠加在上部矿体尾晕上面。

In the coupled model, transfer of momentum and heat between ocean and ice is two-way, and the change of ice thickness and concentration depends on heat budget not only at the surface and bottom of ice, but also at the surface of open water between the ices.

在该耦合模式中，冰和海洋之间的动量和热量交换是双向的，冰厚和冰密集度的变化不仅由冰表面和冰底的热收支决定，还由开阔水的表面热收支决定。

Top rope - A rope that is passed through a fixed anchor at the top of a climbing wall or cliff, with each end tied to the climber and the belayer at the bottom.

Top rope -顶绳。攀登绳通过岩壁顶端的固定保护点，一端连接攀登者，另一端连接保护者。

Each through via comprising a collar exposed at the top surface of the carrier, a pad exposed at the bottom surface of the carrier, and a post disposed between the collar and the pad.

每个通孔包括在载体的顶表面处暴露的环垫、在载体的底表面处暴露的衬垫、以及在环垫与衬垫之间设置的柱。

At the top of our field were more tall trees,and at the bottom was a fast-running stream.

田野高处是片高高的树林，低处是一条湍流不息的小河。

The larger one at the top is a hemorrhagic corpus luteum of menstruation, and the smaller one at the bottom is involuting from a previous menstrual period.

在上方较大是月经期出血黄体，在下方较小的是上一次月经退化的黄体。

Machinery blade: Paper blade, the paper knife, the paper single-pole/double-throw, from top to bottom at cutting knives, cutting knife, cut the knife, slice lamb, knives, scissors disc roller, Slitting points of the knife, bearing knives, cutting carved round Knife, knife lap, multi-bladed knife ring, copper foil crop knives, cutting board, knives, razor blades Jianban, rolling blade, cut steel knife, smash the plastic knives, Qieli knives, Qieli hob, closure at the end of knife, Bag of knives, razor blades Chongjian plane, flying scissors films, scraper, Bodao series, Gangdao tungsten film, clipart blade, the blade three holes, Qiebu knife, knife tooth, like cloth Caidao, non-standard blade may be set System.

机械刀片有：切纸刀片，分纸刀，分纸单刀，分切上下刀，切光刀，切管刀，羊肉切片刀，圆盘滚剪刀，纵剪分条刀，轴承刀，切刻圆刀，光刀圈，多刃刀圈，铜箔裁切刀，线路板裁切刀，剪板刀片，轧钢刀片，钢筋剪断刀，塑料粉碎刀，切粒刀，切粒滚刀，底封刀，制袋机刀，冲剪机刀片，飞剪刀片，刮刀，薄刀系列，钨钢刀片，美工刀片，三孔刀片，切布刀，齿形刀，样布裁刀等，非标刀片可定制。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。