查询词典 F.

The main causes of the pollution identified result from the irregation of using the polluted water from industries and the endogenic pollution of F and Hg elements is mainly caused by...

造成污染的主要原因是工业三废中的污水长期被利用灌溉，同时查明活动断裂是F、Hg等元素的内生污染源。

After theoretically modeling, experiments were carried out to measure a CW laser modulation spectrum generated by a diode laser and an EOM device with the proposed method. Compared with the measuring results with F-P interferometer, experimental results show the feasibility of an optical beat frequency method.

本文在理论建模与分析的基础上，利用该方法对半导体激光器出射激光经电光调制器调制产生的调制光谱进行了测量，测量结果与F-P干涉仪测量结果一致，验证了该方法的可行性。

Therefore, to analyze difference of immunogenicity among NDV epizootic isolates and vaccine strains in details and to establish methods to check immune and epidemic situation,we expressed F protein of strain F_(48)E_9 and strain La Sota respectively.

为了具体分析流行毒株和疫苗毒株之间的免疫原性差异情况和建立适用于检测ND免疫和流行情况的方法，我们又分别表达了弱毒疫苗株La Sota和标准强毒株F_(48)E_9的F蛋白。

It involves solving Newton's equation of motion,'''F = ma'''.

它涉及到求解牛顿运动方程，'''F = ma'''。

Diagram 3 shows triangles E, F, G and H drawn on equilateral triangles of same size.

图 3 显示三角形 E，F，G和 H，它们分别是画在同样大小的等边三角形上。

In order to solve the disadvantage of robust filter algorithm which has great calculation and complicated deduce processing, an improved decentralized robust filter algorithm was designed through equipollent deduction and the on-line alterable value of γ f.

针对鲁棒滤波法计算量大和递推过程复杂的不足，通过等价推导，在线改变γf的值，设计了分散优化鲁棒滤波法，使得鲁棒滤波算法递推简单，避免了直接计算滤波增益阵，并减小了主滤波器计算负荷。

The results obtained from ESCA and IR demonstrated that the PTFE coatings possesses the F��� component.

ESCA和IR的分析结果表明，本文制备的PTFE薄膜内含有F〓成分。

F P etalon ; dynamic tracing ; measurement accuracy

F－P干涉仪；动态跟踪；测量精度

By choosing the proper length and reflectivity of the F-P etalon,the line with high gain can be restrained while keep the weak one untouched.

通过选择适当的F-P标准具长度和反射率，可以达到抑制强线增益，使弱线振荡输出的目的。

Ethylenediamine and benzylamine are insufficiently soluble at, e.g.,-40°F.

乙二胺和苯甲胺，如在－40°F是不完全溶解的。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。