后平衡

According to different flows, the pressure balance spool valve can be pre-pressure, can also be a back pressure valve (external to the center of the flow).

根据流向不同，平衡阀芯所受的压力可以是阀前压力，也可以是阀后压力。

To avoid wearing, stator is fitted with sealing ring and balancing sleeve etc. If worn out, they can be replaced by spare parts.

为防止定子磨损，定子上装有密封环、平衡套等，磨损后可用备件更换。

He designed a series of exercises to balance the body, improve ease of motion and promote mental and physical harmony.

最后他设计一系列的锻炼方法，经过练习后他发现身体得到平衡，行动更舒畅，精神和肢体的和谐性也大幅提高。

When way transportation enterprises is undertaking succeeding and be being bought, also want to note the balance of long-term strategy and short-term profit, should consider to be bought the manager layer compensation of the enterprise, the personnel after take seriously and be being bought is integrated.

道路运输企业在进行成功并购时，也要注重长远战略与短期利润的平衡，要考虑被并购企业的经理层补偿，重视并购后的人员整合。

The first principle based on the density functional theory and the nonequilibrium Green's function method are adopted to research the electronic transmission of a zigzag single wall carbon tube with an implanted Li atom.

运用基于第一性原理的密度泛函理论的非平衡格林函数方法对Li原子嵌入后的zigzag型单壁碳纳米管的电子输运性质进行了研究。

Treated fresh carnation cut flower and rose cut flower with salicylic acid of different density 20mgL^(-1 and 40mgL^(-1) and 60mgL^(-1) and 80mgL^(-1) and 100mgL^(-1), it was studied the influence and the value of moisture equilibrium of fresh heavy change rate for carnation. The result as follows:(1) The carnation cut flowers of tested with SA of different density, fresh weight presented drop after rising tendency.

用不同浓度的水杨酸20mgL^(-1、40mgL^(-1)、60mgL^(-1)、80mgL^(-1)、100mgL^(-1)作保鲜液来处理康乃馨切花，测定SA对康乃馨切花鲜重变化率的影响及水分平衡值的影响；结果如下：(1)不同浓度SA处理的康乃馨切花，鲜重都呈现先上升后下降的趋势。

The calculation mechanics model is used for the curtain wall decussate rope net structure, including m horizontal ropes and n vertical ropes. The balance and displacement equations, alse the potential energy and kinetic energy equations, are constituted for the points with distributive loads and tensile force after the rope net distortion. Using the theory of finite analysis method, these groups of the n horizontal ropes' 2m+5 and m vertical ropes' 2n+5 equations are founded and the numerical solution is calculated.

建立幕墙由m根横向索、n根竖向索组成的正交索网结构的计算力学模型，在网点分配荷载及预张力作用下，列出钢索变形后的平衡方程、位移方程和弹性变形位能与外力作功方程，用有限分析方法将竖向索包含n个由2m+5变元组成的非线性方程组，将横向索包含m个由2n+5变元组成的非线性方程组寻求数值解。

Dun, the Pilot coach who was directing the plane to land safely told him: You must make your plane to aim at the runway, then turn the engine off and make especially the plane to keep a balance.

指挥飞机安全降落的飞行教练告诉他对准跑道后关掉引擎，并格外要他保持平衡，如果下降的倾斜度太大飞机就会撞在地上。

When vapor is removed from the cylinder, the temperature and pressure equilibrium is disturbed and both will decrease .

在蒸气被提取后，温度和压力的平衡被破坏，两者都要下降。

When vapor is removed from the cylinder, the temperature and pressure equilibrium is disturb ed and both will decrease.

在蒸气被提取后，温度和压力的平衡被破坏，两者都要下降。

John Robbins lives with his family in Santa Cruz, California.

约翰罗宾和家人居住在加利福尼亚州的圣克鲁斯县。

The international background is mainly the economic ties among different nations tented to be widen and deepen at the peace and development times.

国际背景主要是和平与发展时代条件下的世界各国经济贸易联系的日益加深。