background concentration是什么意思

网络释义

用法例句

Experiment Study on Paper Money Printing Wastewater Treatment by Flocculation-BC-Oxidation Flocculation Process;

絮凝-BC法-氧化絮凝工艺处理高浓度印钞废水试验

Construction of Plant Expression Vector Containing the Antisense BcMF3 and Its Genetic Transformation of Arabidopsis Thaliana;

Bc MF3反义基因植物表达载体的构建及其对拟南芥的遗传转化

The increase in nominal stress due to live load, BC, is usually small in comparison with the dead load, OA.

活载产生的名义应力的增量BC段与恒载产生的名义应力OA段相比一般是很小的。

Because of this,the BCs can never relax.

由此，bc级的人就永远得不到安宁了。

Soldiers of bad character were branded BC.

对品质恶劣的军人烙BC型烙

The upper echelons are ABs and the middle,BCs.

上层称为AB级，中层称为BC级。

Quasi-classical Trajectory Studies for Several A+BC Reactions;

几个A+BC体系反应的准经典轨迹研究

Performance Management System Design in Operation Department of BC Shopping Center;

BC商城营运部门绩效管理体系设计

The Land Use Planning in British Columbia,Canada and Its Implications for China;

加拿大BC省土地利用规划及其启示

Land Use Planning in British Columbia,Canada and Its Implications for China;

加拿大BC省的土地利用规划及其启示

Inventory Control Methods Based upon JIT;

基于JIT的无BC类成品库存方法研究

BC Coatings Company 6S Research

6S管理在BC涂料公司中的应用研究

The Study on Preparation and Properties of PLA/BC/HAp Composites

PLA/BC/HAp复合材料的制备与性能研究

Preparation and Research of BC/CMC Nanocomposite

BC/CMC复合材料的制备与性能研究

Simulation of Signal Processing System of LFM-BC Pulse Compression Radar

LFM-BC脉压雷达信号处理系统的仿真

Troubleshooting of BC-3000 PLUS Blood Cell Analyzer

BC-3000 PLUS血细胞分析仪常见故障分析

Modeling and Analysis of BC in 1553B Network with SPN

1553B网络BC的SPN建模与分析

BBC was the first authority in the world to provide a public television service in1936.

闎BC是第一家正式授权播送电视节目的公司。

The overwhelming majority of the indigenous English are,in fact,BCs.

事实上，绝大多数土生土长的英国人属于BC级。

I have been working in the Personnel Department of the BC Company as a senior clerk since 2000.

本人自2000年起便已在BC公司人事部任高级职员。