In order to know the efficacy of electrostatic air-disinfection-cleaning device in dynamic cleaning of air, dust particle counter method was used to observe the efficacy of actual removing of dust in operating room.

By the temperature and humidity sensor, respectively dust particle counter and noise sensor as a major acquisition module real-time acquisition corresponding environment monitoring index.

分别由温湿度传感器、微尘粒子计数器和噪声传感器作为主要采集模块实时地采集监测相应的环境指标。

Dust particle counter, dust particle multi-point inspection system, sampling device, environment comprehensive parameter monitor, FFU central controller, etc.

尘埃粒子计数器，尘埃粒子多点检测系统，浮游菌采样器，环境综合参数监测器，FFU中央控制器等。

Auto-correction of dust particle counter

光学尘埃粒子计数器自动校正的实现

Principle and operation of dust particle counter

尘埃粒子计数器的原理和使用

A Dust Counter and Its Remote Sensing with Single-chip Microcomputer

采用单片机实现智能尘埃计数器及其遥测

A simple state machine is used to adapt the output of two photo-cells to control an up/ down counter.

使用一个简单的状态机调整两个光电池的输出，以控制一个增/减计数器。

The asynchronous binary up-down counter of design

异步二进制可逆计数器的设计

The applications of up-down counter in digital phase comparator

可逆计数器及其在数字式相位差计中的应用

We have achieved the design of 32 bit up/ down counter.

设计实现了32位的可逆计数器模块。

Your father refuses to give countenance to your plans to marry.

你父亲不赞同你的结婚计划。

I would not give ( lend) countenance to such a plan.

我不赞同这样的计划。

Some of the greatest benefactors of mankind have had few friends at first to lend countenance to their inventions of discoveries.

人类的某些最大的恩人最初很少有朋友赞助他们的发明或发现。

I've seen him tremble and lose countenance with the word.

只见他浑身发抖，立刻变了脸色。

Are there any countable bases of a non-principal ultrafilter on a Countable set?

可列无限集上的非主超滤子有没有可数基呢？

Where the state set is countable, the action set is a non-empty Borel compact subset of a complete separable matric space.

假设状态集可数，行动集为紧的非空Borel集。

Sufficient and Necessary Condition of Countable Additivity of Set Function

集函数有可列可加性的充要条件

In this paper, the concept of countable set is introduced to the hierarchy diagnosis, in the more, the rules that select the fault models space in the hierarchy diagnosis is given, which provides a basic frame for the reality of hierarchy diagnosis and multi-information diagnosis.

首次将可列集的概念引用到层次诊断中，并给出了层次诊断中故障模式空间的选取原则，为层次诊断的工程实现和未来进行多信息诊断提供了基本框架。

In this peper some sufficient optimality conditions and duality theorems are obtained for a semi-infinite programming problem in the symmetrically differentiable generalized convex functions and the set of active constraints index is infinite countable set case.

在对称可微广义凸函数、起作用约束指标集为无穷可数集的情形下，得到了半无限规划的几个最优性充分条件和对偶性定理。

For any information source on a countable set, the limit properties of relative likelihood ratio and log-likelihood ratio of entropy density with respect to the independent geometry distribution, an important problem in the information theory is discussed.

对任意的可列集上的信息源，探讨信息论的-个重要问题，即探讨了相对于独立型几何分布的熵密度似然比与对数似然比的极限性质。

In this paper is presented a class of Q-matrixes, the exit boundary of which is a countable set.

本文给出一类具有可列个流出边界点的Q矩阵。