Ceramic with zero temperature coefficient could be obtained at suitable ratio.

适合的配比可得到零温度系数的复相BZN组分。

The phenyl content and the Phenyl/methyl ratio in the sample were also obtained,and validated with 1H NMR.

同时对该混合环体的苯基/甲基比例以及苯基含量进行了计算,并得到氢谱的验证。

Which exchange-stock ratio ison earth most reasonable one?

但是，究竟什么样的投股比率才是最合理的？

And the ratio of foreign investment in China’s producer services is even lower.

其中,生产性服务业吸引外资的比重则更低。

The maize sown ratio enhanced across the whole of China.

全国大部分地区的玉米种植比例呈现增加趋势。

The ratio of 2∶1 is the best ratio to produce maximum biogas yield.

在鸡粪与玉米秸秆和猪粪与玉米秸秆配比均为2∶1时,沼气产量最大,产气速率峰值最大,产气效果最好。

In this paper we discussed the reasons for the change in sex ratio from 3 female : 1 male to 5 female : 1 male from the triploid female silkworm which is generated from a tetraploid female silkworm.

解释了过冷却处理诱发的四倍体后代三倍体蚕发生性比从3：1向5：1变化的现象。

The internal flexibility ratio,a new concept,was brought forward to compare the performances of flexible hinges quantitatively.

提出了铰链内各柔度间的比值概念,为定量地比较柔性铰链的性能提供了依据。

Meanwhile,the paper analyses the interactions of the two solutions for two unequal velocity ratio,accordingly it provides particular,convenient,exact and easily verified formula for calculation of the unequal velocity ratio of a single cardan joint.

分析了两种不等速速比求解方法之间的相互关系,为十字轴万向节不等速方面的分析计算提供了详细、简便、准确、易于相互验证的计算公式。

All these fields require precise measurement of the 7Li/6 Li ratio.

所有这些领域都要求精确地测定6Li／7Li的比值。

First of all, the paper analysis and evaluated the mechanical properties of the raw materials ,made mixture match ratio design by laboratory test ,then confirm the parameters,just like gradation、total water consumption、optimal asphalt content and cement content。

首先对原材料性能进行分析评价,通过室内混合料配合比设计,确定混合料的级配、总用水量、泡沫(乳化)沥青用量、水泥用量等设计参数。

The electric drive system consists of motor, fixed speed ratio and differential.

由电动机、固定速比和差速器组成电力驱动系统。

Moreover, I present a method of interpolation between two isolated frames which give a new thinking way for the improvement of compression ratio in low bit rate transmission. Computer experiment proves the results are relatively satisfactory.

而且提出隔帧插值方法，对于提高低比特率下的视频压缩比率给出了一种新的思维，计算机模拟试验证明结果比较令人满意。