neutral optical filter是什么意思

用法例句

Some new Standards regarding exhaust emission smoke,measurement and instruments have been put into practice currently in this countri Symbol of smoke intensity is stipulated to be S F and unit to be FSN.

目前我国已发布实施了一些新烟度排放、测量和仪器标准，并规定烟度符号采用ＳＦ，烟度单位为ＦＳＮ。

Study of the Relationship Between Lug-down and Full load Exhaust Visible Smoke from Diesel Engines;

在用柴油车加载减速烟度和柴油机全负荷烟度的相关性研究

Measurement of Exhaust Smoke for Diesel Vehicles in Use;

在用柴油车排放烟度检测方法浅探

Study on Diesel Vehicle Free Accelerating Smoke Emission;

论柴油车自由加速烟度排放

LUGDOWN is a more advanced method than ASM in testing smoke emission of a diesel engine automobile.

在柴油机汽车的废气排放检测工作中,加载减速烟度检测方法相对于自由加速工况检测方法具有一定的先进性。

Use of an electric supercharger to reduce black smoke emission from a diesel engine;

0%;波许烟度平均减小50%以上。

Automatic measurement of smoke density of two exhaust ports of locomotive diesel engine with one smoke indicator;

用一台烟度计自动测量内燃机车柴油机两个排气烟道的烟度

Mixing Hydrogen with diesel fuel in model S195 diesel engine,the producing of smoke density is lower in all working conditions.

S195柴油机掺氢燃烧在所有工况下,烟度都有新降低。

In order to study the effect of the cooling performance on the emission behavior from a diesel engine, the effects of different intake air temperatures on smoke opacity and NO_x emission were simulational tested.

为了研究中冷器冷却性能对增压中冷柴油机排放性能的影响,模拟了不同进气温度对烟度及NOx 排放性能的影响。

The air-fuel ratio, smoke opacity and in-cylinder pressure of a TCA diesel engine under constant speed and increasing torque transient operating conditions were tested by a home-made control and measurement system.

采用自行设计的瞬态工况控制及测量系统,对增压中冷柴油机进行了恒转速增转矩瞬态工况下发动机的空燃比、消光烟度及示功图参数的测试。

An additional electric supercharger(ES) system was developed to reduce the black smoke emission from diesel engine of bus.

台架试验结果表明,柴油机安装电动增压器后性能得到明显改善:微粒排放、烟度排放和气体排放降低;燃油消耗率减少;输出扭矩增加。

To calculate the effective optical path of smoke meter accurately,an algorithm for the effective opti- cal path of QN-1 total flow extinction type smoke meter was proposed based on artificial neural network in this paper.

为准确计算烟度计的有效光路,基于人工神经网络提出了对QN-1型全流消光式烟度计有效光路的计算方法。