查询词典 F

In order to get the λ repeated root s of equation f = 0, where λ∈R~+ and the equation may be underivative, an generalized Newton iterative method was constructed with order 2 as its convergence.

设方程f=0有λ重根，其中λ为任意正实数，函数f可能不可导，给出了求这一类方程的λ重根的一个广义Newton迭代法，并证明了这种方法的收敛阶为2。

The F test is just the overall significance test.

F检验就是全局显著性检验，由于F(6， 1184)=0.84，且

F f-Number: A symbol that expresses the relative aperture of a lens.

f-制光圈∶一个表示镜头的相对光圈的单位。

Similarly, lens with high f-number have larger DOF than lens with low f-number.

景深是由几个因素影响，广角镜头通常比望远镜头有较大景深，高F值也有较大景深。

The specific capacitance of the ACNT electrode was calculated at 16F/g before the MnO2 film modification, and then it increased to 330 F/g after the MnO2 film deposition due to the special Faradic capacitance of MnO2 With scaning for 200 cycles, there's a litter change for its cyclic voltammogram curve, indicating the good reversible and capacitive property for the MnO2-ACNTs composite.

直立碳纳米管电极的比电容为16 F/g，在碳纳米管表面沉积上二氧化锰修饰层后，此复合材料电极的比电容增大至330 F/g，比电容量大幅提升近20倍。同时扫描200圈后，直立碳纳米管与二氧化锰复合材料的循环伏安曲线变化很小，说明其具有相当好的循环寿命和电容稳定性能。

A nearly identical variant of the F-type, the J-type Zaku II, was designed and employed as a ground combat unit. The Midnight Fenrir team used various F-types as scouts before Zeon's mass drop operations to invade North America.

在吉恩军大量入侵北美的下降作战开始之前，午夜魔狼小队曾经将若干种F型作为侦察机使用。

While analyzing controllability and observability of system over the field F of the rational functions in multi-parameters, we must use the algebraic criteria.

在分析F上系统的能控能观性时，要应用其代数判据，这就要首先求出其F上状态方程系。

Based on the eight-parameter model of F-matrix, some problems on robust estimating fundamental matrix are studied.

刘勇 ，吴成柯，陈泽志以8参数模型的F矩阵为基础，深入研究了F阵的稳定性求解中的若干问题。

By now, the FX was known as the F-15, and all three contenders were hard at work.

到此时，F-X计划被命名为F-15，所有的三个竞争者都在努力。

This work adds to the idea of a general fitness factor, f, that is similar in concept to g—and of which g is one manifestation.

这次的研究让一个大体的健康因素f的想法更加成熟——而且g只是对f的一种表现。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。