查询词典 N.C.

The following are the expressionsfor the mean pressure set up at the detection plate and for the time of the signal toprogagate from the radiator to the detector:这里是1个公式,省略） where Re is the real part of the expression appearing within the braces, 0 is the density ofthe medium, vo is the amplitude of the vibrational velocity, c is the speed of sound in themedium, d2 = I +(r/zcos 8, z is the distance between the emitting and receiving plates, B is the angle between the axis of the acoustic channel andthe axis of the tube, r = vro/c, v is the flow speed of the fluid, d is thediameter of the pipe, m is the circular frequency, k is the wave number,where a is the radius of the plate (this is taken as the same for the emitting and receivingplates for simplicity, but there is no difficulty in discussing plates differ~mg in radii),,~ is the vibrational frequency of the emitting plate, andThe triple sums in the expressions for N~ and N2 may be neglected if the flow speed islow, since the contributions for these become negligible.

以下是表达式平均压力为定于检测板和为信号时间progagate从散热器到探测器：（这里是1个公式，省略）假如再是出现在大括号表达式的实部，0是密度中期，沃是速度的振动幅度，C是健全的速度中，D2中=我+的导向8，z是对之间的距离发射与接收板，B是声之间的通道轴角该管的轴，R =中心内大多分为/荤，v是流体的流动速度，，D是管道直径，m是圆频率，k是波数，的其中一盘是半径（这是为重点，同样的发射与接收为le简单板，但没有讨论板的困难，在半径不同毫克），，是发光板振动频率，和在N的表达式的三重总结和N2可以忽略，如果流速低，因为这些变得微不足道的贡献。

The gaseous impurities in the alloys were well controlled with the sum of C, N and O less than 500wppm. For the first time it was found the strong interaction between Cr-Ti-CON, which reduces the mobility of Ti and CON, enhancing high-temperature strength and the aging-hardening property, and keeping the cold-work induced hardening at higher temperature. Aging-hardening could increase the tensile strength of V-4Cr-4Ti by 30% and could be utilized at 00 C for better economical performane of a vanadium structure. Hydrogen release will occur for the alloys tensile loaded at room temperature, which will affect the safety of a vanadium structure due to the resulting dimensional instability. For hydrogen embrittlement, impact toughness and fracture toughness of the alloy showed higher sensitivity than the tensile test elongation,so the toughness should be used as a new standard for the assessment of the embrittlement. Vanadium alloys were easily oxidized in air.

合金的气体杂质含量得到有效控制，C、N、O总量低于500wppm；首次发现Cr-Ti-CON之间的强相互作用，它使Ti、CON的高温可移动性降低，提高合金的高温强度、增强时效强化特性、使冷加工强化保持到更高温度；时效强化可使V-4Cr-4Ti的强度提高30%，可在低温（00C）下应用，提高构件的经济性；室温下，钒合金在拉应力的作用下，存在着氢释放，带来部件使用中的尺寸不稳定性，影响构件安全；氢脆是钒合金聚变应用的一个关键问题，合金的冲击韧性和断裂韧性表现出比拉伸延伸率更强的氢脆敏感性，应作为评价合金氢脆行为的新标准。

Firstly, this thesis introduces the basic definition and characters of conic curve over finite field Fp and ring Z n.

本文首先分别介绍了基于有限域Fp上的圆锥曲线C p和基于环Z n上的圆锥曲线C n的定义和性质。

In the case of FTIR,-- OH absorption peak at 930-970cm^-1 and 1480cm^-1 are weakened, and C-N absorption peak of imide is enhanced.

在红外吸收图谱中，930～970cm^-1处和1480cm^-1处的-OH吸收峰减弱，在1220cm^-1处的酰胺C—N吸收峰增强，1700cm^-1左右的〉C=O吸收峰略向低频偏移且低频子峰增大；在2240cm。

More than 100 species: arid and semiarid regions of N Africa, C, N, and W Asia, Australia, S Europe; 19 species in China.

超过100种：非洲北部，C，N 和W亚洲，澳大利亚，S欧洲的干旱和半旱的地区；中国有19种(2特有种)。

Methods 174 cases of esophago cardiac operation were divided into three groups at random.A group(n=60) received CINB,B group (n=57) received patient controlled intravenous analgesia.C group(n=57) as control received neither CINB nor PAC.Compare the different of the ache degree and the dose of the drugs used and the change of breath s data between three groups.

174例行食管贲门手术患者随机分为3组，A组(60例)采用肋间神经阻滞镇痛作为试验组，B组(57例)采用术后静脉自控镇痛组及C组(57例)为对照组，观察各组患者术后疼痛及止痛药的使用情况；同时对比观察各组术前、术后呼吸功能指标的变化。

The changes of nitrogen content, free amino acid, C/N ratio and chlorophyll content of wheat in wheat-faba bean intercropping system were studied by pot experiment with 3 N levels 0, 75 and 150 mg Nkg^(-1 soil. The results showed that leaf nitrogen content of intercropped wheat was higher than that of monocultured wheat at 3N level at tilling and booting stages, but was lower at heading stages.

为了解小麦蚕豆间作系统中小麦氮同化物的变化特征，探讨小麦蚕豆间作提高作物抗病性的可能机制，通过盆栽试验的方法，研究了小麦植株全氮含量、叶片游离氨基酸、叶片C/N比和叶绿素含量的动态变化及供氮水平对其的影响。

N, P and C released from litter more rapidly in site J than in site D. No net immobilization of N and P appeared in site J, but it appeared in some types of litter in site D.

尖峰岭和鼎湖山两个样地之间，凋落叶的N、P、C、木质素和粗纤维素浓度动态有较明显的不同。

The simple sugars （monosaccharides0 are basically aliphatic polyhydroxy aldehydes and ketones: HOCH2- n-CHO and HOCH2- n-1-C-O-Ch2OH, called "aldoses" and "ketoses," re ectively.

单糖本质上是脂族的多羟基醛和酮，即HOCH2-2-CHO和HOCH2-n-1-C：O-CH2OH，分别称为醛糖和酮糖。

The results indicate that the backbone of PBSZ is -Si-N-B- linkage in the form of borazine and C is in the form of Si-CH3. The ceramic yield of the PBSZ pyrolysed at 1000℃ in N2 and NH3/N2 atmospheres is 63wt% and 61wt%, respectively.

结果表明，先驱体的结构骨架为-Si-N-B-，其中B、N以硼氮六环的形式存在， C以Si-CH3形式存在。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。