two-chamber filter

Two methods ( the contact filter paper method and natural soil method) were used to study the acute toxicity of chlorpyrifos to earthworms.

采用滤纸接触法和自然土壤法研究了毒斯乐对自然蚯蚓的急性毒性。

互联网摘选

Three methods for design of SAW filter with two pass bands and a trap are presented.

研究比较了几种陷阱型双通带声表面波滤波器的设计方法。

互联网摘选

The thirty-two order filter is worked out using distributed arithmetic algorithm which is simplified by symmetry.

在算法上采用了分布式算法，并利用对称性简化设计，用16阶的设计完成了32阶的滤波器。

互联网摘选

An orbit prediction program based on epoch state filter is designed. Then sun-synchronous orbit is taken as an example to generate the base track, amend two-line elements and predict medium and long term orbit.

设计了基于历元状态滤波的轨道预报方案，以太阳同步轨道为例生成基准轨道，并进行了双行元修正和中长期轨道预报仿真。

互联网摘选

The proposed algorithm models each module, such as the primary path, the secondary path, the FSF and the control filter, with a simplified Finite Impulse Response ( FIR) structure that includes only two coefficients.

本算法采用只含两个系数的有限冲击响应（FIR）结构对次级通道、初级通道、选频滤波器、控制滤波器等有关模块进行建模。

互联网摘选