Based on the features and specifications of the visible optics for a detection system,the selection of optical layouts,the parameter calculation of initial layout and the method of aberration balance for a long focal length,large-aperture optical zoom system are introduced.
根据某探测设备可见光通道光学系统的特点和技术指标要求,详细介绍长焦距大口径连续变焦光学系统结构形式选择、初始结构参数计算及像差平衡的方法,给出运用该方法设计的采用正组机械补偿形式的长焦距大口径连续变焦光学系统的设计结果。
For the characteristics of penetrating fog continuous zoom optical system, the method of designing large-aperture long-focus length penetrating fog continuous zoom optical system is put forward, including the choice of configuration form, the selection of the relative aperture and initial configuration for each subassembly and the aberration balancing.
针对透雾连续变焦光学系统的特点,介绍了一种大口径、长焦距、透雾连续变焦光学系统的结构形式选择、系统中各组分相对孔径及初始结构的选取、像差平衡的方法。
Static unbalance test method for aircraft tyre
GB/T13655-1992航空轮胎静平衡差度试验方法
Balance of trade
贸易差额,国际贸易平衡
current balance type current differential relay
电流平衡式差动电流继电器
Remove differential case and dummy bearings from axle housing.
拆卸轴壳内的差速箱和平衡轴承。
Regional Trade Differentiation and Imbalanced Development;
区域贸易差异与区域不平衡发展研究
The Time-Space Differences on Dynamic Equilibrium of the Total Cultivated Land in Hubei Province;
湖北省耕地总量动态平衡的时空差异
Dispersion Equalization of Four-Frequency Differential Laser Gyroscope with Non-Planar Resonator
异面腔四频差动激光陀螺的色散平衡
Spatial Differentiation of Water Resources Supply and Demand Balance in Fujian Province
福建省水资源供需平衡区域差异分析
Comparison between Build-in and External Balance Vessel Differential Pressure Fluviometer
内、外置平衡容器式差压水位计的比较
The testing methods for the current balance of transformer differential circuit
变压器差动回路电流平衡的检验方法
Teaching methods of keeping balance among different levels higher vocational college students
平衡高职类学生英语水平差别的教学法
Symmetrical dancers were rated more positively than non-symmetrical ones, especially by women.
平衡性好的舞者比平衡性差的人得到的评价要高，尤其是女性更加青睐平衡性好的人。
Many out-of-balance conditions can be detected by computing the difference between total debits and total credits on the trial balance.
试算平衡表多数不平衡的情形都可以通过计算试算平衡表中借贷方合计的差额而被发现。
The Difference and Equilibrium of Salaries among Provinces:An Analysis Based on Utility Equilibrium;
工资的省际差异与平衡——一个基于效用均衡观点的分析
Differential operation( one suction and two discharges per cycle) keeps the discharge fluctuations Very Low.
差动式操作令输出的波动很小，输出压力平衡。
The acrobat almost fell over but quickly recovered.
那杂技演员差一点跌倒，但很快恢复了平衡。
The trade surplus has become large, and the imbalance in international payments has worsened.
外贸顺差较大，国际收支不平衡矛盾加剧。
balance sheet ;written record of money received and paid out,showing the difference between the two total amounts
资产负债表,资金平衡表（显示收支总差额的记录）.