查询词典 fir

Preparation of sodium zinc chlorophyllin from Chinese fir leaves and its stability

以四种竹叶作为原料制备叶绿素锌钠盐，并对其产量进行比较。

In this study the change of brightness, chromatism and infra red spectra of compressed China fir during heat treatment in air or heat treatment in vacuum are studied.

该文重点研究了杉木压缩木材在经过空气介质中热处理和真空中热处理后明度、色差和红外光谱的变化。

The water-saturated and boiled specimens of China fir are hot pressed with the average compression rate of 50%. Then they are heat treated in a common oven or in a vacuum oven, with the temperatures of treatment of 140,160,180,200,220℃, respectively. Then the brightness, chromatism, infra red spectra of the specimens are measured and discussed.

为了探讨热处理过程中杉木压缩木材的材色变化规律，以及材色和木材化学主成分变化之间的关系，该研究测定了空气介质和真空中热处理杉木压缩木材(热处理温度范围140～220℃，时间范围0～36h)的明度、色差以及红外光谱。

Make sure that your clasp is fir m.

要确保你的握手有力量。

In addition, coarseness degree were analyzed and compared between planed and sanded Moso bamboo or Chinese fir surface.

另外，还对经过砂光和刨光的毛竹和杉木表面粗糙度进行了对比分析。

There are good alternatives. A bunch of soft green leaves, some use fir cones and even corn cobs but even these items may be hard to come by.

有好的替代办法：一束柔软的绿草叶，一些冷杉果，甚至玉米穗，但是即使这些东西也不容易得到。

Different four types of Moso bamboo/Chinese fir laminated composite without fire retardant treatment showed different combustibility.

未经处理的四种不同形式竹杉层积复合材料的燃烧性能之间存在各自特点。

Join Hubie once again as he faces his comically horrific fears during his fir

它们讲述的是小男孩胡比第一天上学和第一次去学校图

Reviewed the digital filters' structure and design concisely. Discussed and...

简单回顾了数字滤波器的结构和设计，详细讨论和比较了线性相位FIR滤波器的三种设计方法。

It has been deduced that the search direction remains the same but that the step length decreases in optimizing the improved cost function with the conjugate gradient algorithm from the gradient of the cost function that the FIR filter apporaches the contrary point spread function more, and that the estimated image is closer to the original one.

从代价函数的梯度入手推导出共轭梯度算法，其搜索方向保持不变而搜索步长变小，使滤波系数更加逼近于点扩展函数逆算子，从而使估计图像与原始图像更加接近。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。