定

Recommended National Standards GB/T12243-2005 "spring load safety valve directly," provides a safety valve back seat pressure should be greater than 85% of the entire set pressure or 80% of the entire set pressure.

推荐性国家标准GB/T12243-2005《弹簧直接载荷式安全阀》规定，安全阀的回座压力应大于85%的整定压力或80%的整定压力。

Selection of safety valve Decided by the operating pressure safety valve nominal pressure, the decision by the operating temperature range of temperature safety valve from the computed value of the decision constant pressure safety valve spring or a lever set pressure range, then the safety valve according to the decision to use media materials and structure type, and then calculated according to the safety valve Discharge valve throat diameter.

安全阀的选用由操作压力决定安全阀的公称压力，由操作温度决定安全阀的使用温度范围，由计算出的安全阀的定压值决定弹簧或杠杆的定压范围，再根据使用介质决定安全阀的材质和结构型式，再根据安全阀泄放量计算出安全阀的喉径。

Recommended National Standards GB/T12243-2005 "spring load safety valve directly," provides a safety valve discharge pressure should not exceed 1.1 times the setting pressure or 1.2 times the setting pressure.

推荐性国家标准GB/T12243-2005《弹簧直接载荷式安全阀》规定，安全阀的排放压力应不超过1.1倍的整定压力或1.2倍的整定压力。

The space-filling curve and the method of fixed row layout are used to reduce the searching spaces. The methods of two-stage layout and fixed row layout are used to solve the problems of irregular shape of departments. It is assumed that department area to be variable within some extent for implementing the exchange of department locations with different area among different floor.

提出用&定行法&和&空格填充线法&缩减搜索空间，用两阶段法（优化位置-调整面积形状）和&定行布置法&解决部门面积形状不规则的问题；对于多层厂房优化布置，提出按固定楼层布置顺序、改变部门布置顺序的方法缩减搜索空间；假设部门面积可在一定范围偏差，实现楼层间不同面积部门对调。

The space-filling curve and the method of fixed row layout are used to reduce the searching spaces. The methods of two-stage layout and fixed row layout are used to solve the problems of irregular shape of departments.

提出用&定行法&和&空格填充线法&缩减搜索空间，用两阶段法(优化位置-调整面积形状)和&定行布置法&解决部门面积形状不规则的问题：对于多层厂房优化布置，提出按固定楼层布置顺序、改变部门布置顺序的方法缩减搜索空间；假设部门面积可在一定范围偏差，实现楼层间不同面积部门对调。

The twin vortex at the tip clearance of hub side and the asymmetric recirculation at wall of inlet duct are also observed. 4 The mass-weighted average of flow parameter at inlet and outlet of every passage of impeller changes with different positions. In addition to the above, with the unsteady method, the head rise, shaft power and efficiency have been predicted well.

再次，采用整机非定常计算准确预测了三种工况下部分流泵的扬程、轴功率和效率；发现了叶轮进出口质量加权平均的速度、压力、动量矩的宏观不变特性；蜗壳内流动的非定常性对部分流泵的外特性有重要的影响。

In this paper, we present a new idea of setting calculation that is "Rule Driving". Using this idea, inference machine and setting-calculation model are developed successfully.

文中还提出了一种&规则驱动&的整定计算思想，并使用这一思想开发系统的推理机和整定计算模块。

Once you realize that you've lost the feel of the weight against the bottom, and your depth hasn't changed significantly, you have to put two and two together and get ready to set the hook.

一旦你知道你的感觉失去了对底部重量、和你深度没有显着变化，你把两个和两个在一起，准备订定这项技术hook.the首选钩称为扫定。

Once you realize that you've lost the feel of the weight against the bottom, and your depth hasn't changed significantly, you have to put two and two together and get ready to set the hook.

一旦你知道你的感觉失去了对部重量、和你深度没有显着化，你把两个和两个在一起，准订定这项技术hook.the首选钩称为扫定。

The semiaquatic polar bear was once considered to be nomadic, but has since been shown to have a very large home range — up to about 115 square miles.

水陆两栖北极熊曾经被人们定为无定所式生活，但是后来发现是很大的活动范围-达到大约115平方英里。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。