n n的例句大全

Non-Structural Carbohydrate, N, and P Allocation Patterns of Two Temperate Tree Species in a Semi-Arid Region of Inner Mongolia

内蒙古半干旱区树木非结构性碳、氮、磷的分配格局

N-alkane concentrations in the cuticular wax of seven temperate grass species were assayed by gas chromatography. One-way ANOVA was used to examine the effect of sampling time on the concentrations of individual N-alkanes in the same species.

利用气相色谱仪测定了7种温带常见牧草表皮蜡质层饱和烷烃（N-alkane）的浓度，对同一牧草种不同生育期的饱和烷烃模式进行方差分析。

In fact, the Fe-N lengths are related with temperature with the action of internal chemical pressure.

由于内化学压的作用，将温度和键长关联起来。

In order to release the stresses originated from the lattice mismatch and reduce the defect densities, sapphire substrate surfaces are preprocessed by H-plasma cleaning, N-plasma nitriding and the low temperature buffer growth.

为了释放因晶格失配产生的应力，以降低在GaN外延膜中引起的缺陷密度，我们对蓝宝石衬底采用了氢等离子体清洗、氮等离子体氮化以及低温生长缓冲层的方法。

Law of active species ( N+, N f) energy distribution with discharge temperature changing at cathode well of nitrogen glow discharge is studied.

采用蒙特卡罗方法，模拟研究了氮直流辉光放电电子碰撞、离解和N+2电荷交换离解过程，产生的活性粒子（N+，Nf）轰击阴极壁的能量分布随放电气体温度的变化规律。

Electron Temperature of Hollow-Cathode N~ ( 2+) Discharge Plasma

空心阴极N~（2+）等离子体放电电子温度的研究

For high nitrogen Cr Si Ni N films in comparison with low nitrogen Cr Si Ni N films, the variation of electrical resistance was smaller during the heat treatment, and the higher annealing temperatures was needed to obtain a small temperature coefficient of resistance ( TCR).

与低氮含量Cr Si Ni N薄膜相比，高氮含量Cr Si Ni N薄膜的电阻值在热处理过程中变化较小、欲获得较小电阻温度系数（TCR）需要更高的退火温度。

In this paper, monthly surface air temperature departure field during December 1968-November 1978 in the 10? S-80? N region is resolved with-the method of natural cross unfolding analysis.

本文利用自然正交展开的分析方法，对10°S80°N地区1968年12月1978年11月历年逐月的地面温度距平场进行了分解。

The fusion time, fusion temperature, and equilibrium torque of rare earth stabilizer system were 2.5 min, 177 ℃, and 19.0 N · m, respectively, which were less than those of lead salt system, 4.3 min, 184 ℃ and 19.5 N · m.

稀土稳定剂体系的塑化时间、塑化温度和平衡扭矩分别为2.5min、177℃、19.0N·m，分别小于同配方铅盐体系的4.3min、184℃、19.5N·m。

A reversible temperature indicating paint, based on alkyd resin varnish, chromophoric pigment ( CoCl 2 · 2C 6H 12 N 4 · 10H 2O) and low cost pyrophyllite filler and xylene, has been prepared.

采用醇酸清漆漆基，变色颜料（CoCl2·2C6H12N4·10H2O），价廉、易得的叶蜡石填料和二甲苯溶剂，制得可逆型示温涂料。

Since the discovery of specific anomalous electromagnetic character of n-Ge above room temperature, the inversion layer model has been very successful in theoretical investigation of anomalous Hall effect. However, up to now this model has not been verified experimentally.

自常温反常电磁特性发现以来，人们用反型层模型对常温反常Hall效应进行了成功的理论探讨，但至今这种模型还未得到实验的验证。

The main results are as follows: The best interface temperature, optimum length ratio, and maximum output power of n-type Bi2Te3/ CoSb3thermoelectric materials with wide temperature range were investigated with the intersection method of the ZT curves.

得到了以下主要结果：采用ZT值曲线交点法研究了n型Bi2Te3/CoSb3宽温域梯度材料的最佳界面温度、最佳长度比和该材料构成的n型热电臂最大输出功率。

From the condition experiment, the optimum reaction temperature and the optimum ratio of mixture acid [ n ( Sulfuric acid)/ n ( Nitrate)] are obtained.

通过条件实验，得出了苯丙酮在常压条件下硝化反应的最佳温度和最佳混酸[n（硫酸）/n（硝酸）]配比。

TPD characterization of n-propylamine temperature programmed desorption indicated that the acid density and acid strength of the catalyst acid sites changed with the temperature rise of catalyst activation and reached a maximum at 250 ℃ and 350 ℃, respectively.

催化剂表面酸强度和酸密度均随着活化温度的提高先增大后降低，分别在350℃和250℃时达到极大值。

CoMo bimetallic nitride catalysts were prepared by temperature programmed reduction of CoMo oxides in flowing N 2 H 2 mixture gases, and effects of added cobalt on BET surface area of the products were investigated.

以N2-H2为氮化气与钴钼氧化物进行程序升温反应制备了大比表面积的钴钼氮化物。

The nitride catalyst of CoMoN_x/ γ-Al_2O_3 was synthesized by using Co ( NO_3)_2 · 6H_2O and ( NH_4)_6Mo_7O_ ( 24)· 4H_2O as sources and nitrided with N_2-H_2 mixture by process of temperature programmed reduction.

以Co（NO3）2·6H2O以及（NH4）6Mo7O24·4H2O为原料，采用N2-H2为还原气，通过程序升温还原反应的氮化处理技术，合成了CoMoNx/γ-Al2O3催化剂。

The column temperature was increased by programming with the sample entrance and detector being at250 ℃. The carrier gas was nitrogen. The flow rate was1ml/ min and shunting ratio was25 ∶ 1.N-octyl alcohol was used as internal standard.

方法色谱柱为DB-WAX毛细管柱，柱温采取程序升温，进样口及检测器温度为250℃，载气为氮气，流速为1ml/min，分流比为25∶1，内标为正辛醇。

The entropy generation number N st of heat exchangers of several flowing pattern was compared with that of contraflow heat exchanger. The varying law of N st with the heat transfer unit number NTU, inlet temperature ratio τ and heat capacity ratio C was obtained.

将几种流动型式换热器相对于逆流式换热器进行了熵产生数相对值的比较，得到了熵产生数相对值随传热单元数、入口温度之比和热容量之比的变化规律。

The results indicated that n-heptane showed the two-stage auto-ignition, and heat release with low temperature reaction ( LTR) and high temperature reaction ( HTR), and heat release with HTR is consist of blue-flame reaction and hot flame reaction.

结果表明，正庚烷的燃烧过程由高温反应和低温反应两个阶段组成，高温反应阶段又可以分为蓝焰反应和热焰反应两个阶段。

Fretting Wear Behaviour of TiC/ Ti ( C, N)/ TiN Multi-Layer Coatings at Elevated Temperature in Gross Slip Regime

TiC/Ti（C，N）/TiN复合涂层在滑移区的高温微动磨损特性