Suitable for low-light-level detection applications, the photomultiplier tube ( PMT ) provides extremely high sensitivity and ultra-fast response.

In this way, the light flux received by PMT is the fluorescence produced by chlorophyll-a.

通过脉冲氙灯的每次闪光强度与光电倍增管所检测的荧光强度之比来表征叶绿素a的浓度.

The procedure of extraction of PN diode parameters from forward I V characteristics is studied.

研究了利用电流-电压(I-V)正向特性提取PN结二极管参数的方法.

There was a significant negative correlation between Pn and the stoma resistance.

蒸腾速率与气孔阻力呈显著负相关.

The activation of C 4 system may play an important role in the pathogenesis of PN.

补体C4的激活可能在PN发病 机制中起重要作用.

The same nominal pressure PN of the same value of the mark DN!

同一公称压力PN值所标示的同一公称通径!

Obtaining evidence for the validity of PN scores can take many forms.

取得PN分数有效性证据可采取多种方式.

She likes to read books pn philosophy, and about the meaning of life.

她喜欢读哲学书籍, 思考人生的意义.

Spread spectrum communication uses much larger bandwidth than original information using pseudo noise ( PN ) sequences .

扩频通信采用伪随机 编码调制,使用比信息数据大得多的带宽.

Acquisition of PN code is an important and challenging technique in SS communication.

PN码的捕获是扩频通信系统中的一项重点和难点技术.

pneumatic tools

风动工具

Experience for finishing equipments like pneumatic pump and spraying machine or paint would be an advantage.

具备工业涂装行业如:油漆输送泵,喷涂设备及油漆应用经验者优先.

Much of their study and revision was done to the thud of hammers and pneumatic drills.

他们学习和复习时大多都伴着锤子和风钻沉闷的敲击声。

Operation Methods: Handle, Worm Wheel, Electric, Pneumatic , Hydraulic, Electric & Hydraulic .

操作方式: 手柄, 蜗轮, 电动, 气动,液动, 电液 动.

a pneumatic tyre

充气轮胎

Pneumatic system is lubricated automatically. The service life of the product is long.

气动系统自动润滑. 产品使用寿命长.

Open the form of electrical, pneumatic, worm gear, gear and so on.

开启形式有电动 、 气动 、 蜗轮 、 伞齿轮等.

Main exports machinery products, welding products and pneumatic products.

主要出口机械类产品 、 焊接类产品和气动类产品.

a pneumatic pump

气动泵

...pneumatic tyres.

充气轮胎

The control mode is subdivided into single and double control, single and double pneumatic control.

功能细分为二位三通和二位五通,控制方式细分为单、双电控和单、双气控.