分次

Amination reaction was carried out at temperature of 90℃ to 150℃ for 2h to 10h and then ashless dispersant of polyisobutylene succinimide would be obtained after dehydration with the operations of vacuum distillation and filtration.

结果发现，实验在N_2保护下进行，BPO／PIB质量比为0.035，MA／PIB摩尔比为1.3，反应温度为150℃，反应时间为12h，搅拌速率为250rpm，引发剂过氧化苯甲酰以丁酮为溶剂分六次，时间间隔为30分钟，均量地加入反应器时，烃化反应物聚异丁烯的转化率最高。

All of that should have hoops fans atwitter because when San Antonio does begin to dominate, the NBA will have two finely tuned machines racing on a collision course to a repeat of last year's classic, hard-fought Finals -- a rematch of the Spurs and Pistons.

不论怎样，球迷们注定要关注一个惊心动魄的季后赛了。因为一旦马刺真正开始主宰比赛，那去年那场经典的角逐势必会再次上演——两支&装备精良&的球队，马刺与活塞，将又一次展开难分胜负的决赛厮杀。

DFT were carried out to optimize the conformational isomers with minimum energies. Peak separations in the methyl and azomethine signals were also found to originate from the rotation hindrance of the N-N bond. After N'-acylideneacetohydrazides were converted to 1, 3, 4-oxadiazole compounds, the proton signal of the methyl group appeared as a single peak.

端甲基质子和次甲基质子信号裂分也来源于N-N键旋转受阻。N'-苄基酰腙通过缩合反应转变成1，3，4-二唑化合物，消除了甲基空间取向的差异，其信号变为单峰。

At present, to apply the differential GPS bathymetric survey system in channel general survey is still a new trial.

目前，将差分GPS水深测量系统运用到航道普查还是一次新的探索。

The results showed that clay mineral of the sedimentary core B106 reveal seven palaeoclimate events since 16725 Cal.aBP, such as"Bolling Warming Events"in 13100±45 aBP,"Younger Dryas Cooling Events"in 10393±45 aBP,"Early Holocene Cold Event"in 8000aBP,"South of China Cooling Events"in 4624±35 aBP, Cooling Events in 3370±40 aBP, Drought Incident Cooling Events in 922BC and"Cooling Events of Northern and Southern Dynasty"in 514AD.

研究结果显示，B106柱的粘土矿物学指标指示出16725 Cal.aBP以来的7次古气候变化事件，分别是13100±45 aBP的&博林暖期升温事件&、10393±45 aBP的&新仙女木降温事件&、8000 Cal.aBP对应的&全新世最大降温事件&、4624±35 aBP的&中国南方降温事件&、3370±40 aBP的降温事件、922BC的干旱降温事件和514 AD的&南北朝降温事件&。

We presented a novel approach for empty space skipping for object-order volume rendering. A two-staged space skipping was introduced: the first stage applied bricking on a regular grid, and the second stage used octree to reach a finer granularity.

提出一种针对物体空间为序体绘制的空域跳过算法：采用双层次空间跳过，先以规则的数据分块作粗略地跳过，再以八叉树获得更高粒度的优化。

According to the ecologic and sedimentary features, the Late Permian biota and strata of south Guizhou can be grouped into the "shallow platform type"and "sub byssal aulacogen type".

根据生态环境和沉积环境的差异，黔南晚二叠世生物群和地层可分出两种类型：&浅海台地型&和&次深海裂陷槽型&，后者为深水型。

By focusing on the coupling of water and fertilizer and using all-purpose regression design with four factors and five levels, and based on pot experiments and quantitative analysis, the coupling effect of water and fertilizer on Casuarina equsetifolia biomass was studied in order to solve the inconsistency problem of water and fertilizer supply on coastal sandy land.

针对滨海沙地因水肥不协调而形成大面积低效林分的问题，以水肥耦合为中心，以1年生木麻黄幼苗为研究对象，采用四因子五水平二次通用旋转组合设计，利用盆栽试验和定量分析的方法，研究探讨了在不同水肥条件下，水、N、P、K四因子对木麻黄生物量的影响。

Moreover the clock chip has the year, the month, Japan, divides, the second time function and designated when as well as the week demonstration function, chronometric data's renewal each second carries on automatically under the computer C language's actuation one time, but does not need the procedure to intervene its output state.

另外时钟芯片具备年、月、日、时、分、秒计时功能和多点定时以及星期的显示功能，计时数据的更新在计算机C语言的驱动下每秒自动进行一次，但不需程序干预其输出状态。

Characteristic indices reflecting the dynamic property of myocardial inotropism and chronotropism were extracted by processing the sampled data through cubic spline interpolation, evenly resampling, wavelet filtering and differential computation.

通过对数据进行三次样条插值、均匀重采样、小波滤波、差分运算等处理后提取了能够反映大负荷运动后心肌变力性与变时性动态特性的特征指数。

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％。