计算口径

在对已有的研究成果进行分析之后，统一了房价收入比指标的计算口径。最后总结了房价收入比的特点。

At last , it summarizes the characteristics of house price-income ratio .

居住水平的数量增长和质量提高的计算口径全国各地应该统一。

A uniform measurement system should be applied to indicate the quantitative and qualitative improvement of housing level across the country .

税前会计利润与纳税所得之间存在着永久性和时间性差异，主要由于税前会计利润与纳税所得之间计算口径和时间差别所造成。

There is permanent difference and timing difference between pre-tax accounting profits and income after tax because of the calculating caliber and temporal difference between them .

导出了用天线方向图的半功率波束宽度快速计算口径天线方向性系数和增益的简单表达式，分析讨论了这些公式的应用范围。

The simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths . Applied range of these formulae are analyzed and discussed .

把口径误差表示为焦点与端面的相对位移，可以定量计算口径误差对象质的影响。

Heretofore , the error of the size of apertures is represented as a relative shift between the focus and the edge surface of the mirror , and then the image quality is computed accordingly .

运用以上方法统一了计算口径，通过比较年平均成本和年收益来判别新排污收费政策的经济性。

By the comparison of the annual average cost and annual benefit , it has been concluded that the net benefit of the new pollution discharge fee regulation is significant which means that the new policy is economically efficient .

管内阴极保护的数值模拟（Ⅱ）&有限差分法计算大口径管内的电位分布

Numerical simulation of cathodic protection inside pipes (ⅱ) - calculating the potential distribution inside large-size pipes by using the finite difference method

气动计算在小口径弹丸设计中的应用

The Application of Aerodynamic Computation in Small Caliber Munition Design

本文讨论了大口径铜蒸汽激光放电的纵向阻抗，给出了阻抗的解析表达式，具体计算了大口径铜蒸汽激光的放电感和电容。

The optimum input power density is presented by analyzing and calculating the discharge tube gas temperature of a100 W copper vapor laser to avoid the " black center of beam " .

利用工程法和挤进时期内弹道法计算了某口径平衡炮的弹丸挤进压力，分析了其对内弹道性能的影响。

The engraving force of projectile of a DAVIS gun through the way of project and interior ballistics during engraving has been calculated , and its effect on interior ballistic performance has been analyzed .

经计算分析，设计口径与实验口径相差较大以及DOE单元数太少很可能是出现问题的原因。

According to the computing analysis , the difference between design and experimental caliber and the lack of DOE unit will be the cause of these problems .

阐述了利用曲面计算全图检测大口径、深度凹非球面的光学检测系统的设计方法和结构原理。

Then the measurement of large-aperture and deep concave aspheric surfaces with curve CGH is considered . We develop the design and theory of the test system .