降下

Compared with original hypoplastic model, the revised hypoplasticmodel can reflect mechanics of sand in cycle loading. That includes accumulation ofdeformation and accumulation of pore water pressure and decrease of effective stress.

相比原亚塑性模型而言，改进的亚塑性模型能够反映循环荷载下砂土的力学特性，包括变形的累积效应，孔隙水压力的累积效应以及有效应力的降低等。

C Proceeding inferiorly, the descending aorta is noted.

c 再往下的一个截面，可见到主动脉弓的降部。

Tests of FCC naphtha upgrading were conducted under such optimum reaction conditions (with a reaction temperature of 450℃), as compared with the untreated naphtha the olefin content of the treated naphtha decreased from 40.74% to 25.80%, the contents of isoparaffin and aromatics increased significantly, the computed octane number was 5.48 unit higher, yet the naphtha yield dropped 14.25 percentage points and the LPG yield increased 13.52 percentage points.

在450℃的优化条件下，催化裂化汽油改质后，烯烃质量分数由40.74%降至25.80%，异构烷烃和芳烃含量有较大幅度的增加，计算辛烷值RON提高了5.48个单位，汽油收率降低了14.25个百分点，液化气收率提高了13.52个百分点。

The Guardian can reveal that a team of 20 top scientists assembled by Mr Venter,led by the Noble laurate Hamilton Smiith,has already constructed a synthetic chromosome,a feat of virtuoso bio-engineering never previously achieved.Using lab –made chemicals,they have painstakingly stitched together a chromosome that is 381 genes long and contains 580,000 base pairs of genetic code.

家长可以显示一个20人的团队的顶尖科学家通过文特的带领下，高贵的laurate汉密尔顿Smiith，已经建造了一个合成染色体，这一壮举的演奏家生物在以前从未达到使用化学实验室，他们之前在刻意的染色体缝长和包含381基因遗传密码的580，000降到了现在的碱基对。

The results show that the optimal parameters of esterification are as follows: 4% of SO42-/ZrO2, molar ratio of methanol to litsea cubeba kernel oil 101, 68 ℃ of reaction temperature and 4 h of reaction time, the acid value decreases to 2.52 mg/g. Compared with the traditional acidic-catalyzed method, this method has the advantages of no acid proof equipment, easy to recycle catalyst and no acidic waste water emission. The optimal parameters of transesterification are as follows: 25 ℃ of reaction temperature, 0.5% of hexadecyl-trimethyl-ammonium bromide, 1% of NaOH, molar ratio of methanol to the oil 61 and 15 min of reaction time. The ester exchanging rate is 97.6%. This method adopts phase transfer catalyst and produces industry prospect, which has many advantages such as energy-saving and time-saving under room temperature.

研究结果表明，固体酸SO42-/ZrO2催化酯化反应的最佳条件为：油重4%的SO42-/ZrO2，醇油摩尔比为101，温度为68 ℃，反应时间为4 h，原油酸值降到2.52 mg/g；该法相对浓硫酸催化酯化法具有不需耐酸设备、催化剂易回收、无废水排放等优点；相转移催化酯交换反应的最佳条件为：温度为 25 ℃，0.5%的十六烷基三甲基溴化铵，油重1%的NaOH，醇油摩尔比为61，反应15 min，原油酯交换率达到97.6%；采用相转移催化技术，反应在常温下进行，大大减少了能耗，缩短了反应时间，具有的产业化前景。

A Contrast-enhanced CT scan of the upper abdomen shows a saclike mass of dilated jejunal loops between the pancreatic head and stomach. The descending mesocolon and stomach are displaced laterally. The dilated inferior mesenteric vein is located at the anterior border of the encapsulated loops.

a 上腹部增强CT扫描显示胰头和胃之间见囊状成簇扩张的空肠，降结肠系膜和胃被推移到侧方，扩张的肠系膜下静脉是疝囊内肠襻的前界。

The result of anaerobic baffled reactor treating low strength wastewater on mesophilic condition indicates that on the condition of influent CODCr concentration of about 500 mg/L,HRT 3～12 h,the reactor was efficient in the removal of CODCr,viz above 84%,effluent CODCr concentration of 75 mg/L.

对厌氧折流板反应器在中温条件下处理低浓度废水的试验结果表明：在进水CODCr浓度为500mg/L、水力停留时间为3～12h时，CODCr的平均去除率可达84%，出水CODCr浓度可降至75mg/L。

Form April to July, 1975, and 1977, a series of artificial stimulating precipitation experiments by seeding clouds with, metaldehyde and silver-iodine from the ground by the small rockets were carried out in Gutian reservoir region of Fujian province.

1975年和1977年4—7月，在福建古田水库地区进行了由小火箭携带介乙酸和碘化银播云的人工降水试验，采用区域回归随机试验方案，利用统计方法检验效果。试验对象主要是系统天气影响下的降水性层状云和积状云，以三小时时段为试验单元，总共进行了62次随机试验，其中实际作业31次，对比试验31次。

On the assumption of un-stirred, by reducing the dimension of system, the steady-state system takes the following form.here, u v are two competitive microorganic species.

在非均匀搅拌的假设下，对系统进行参数无量纲化和降维处理后，模型的平衡态即其中，u，v是两种相互竞争的微生物。

The classical principal component analysis is one of the most effective feature extraction methods. PCA essentially gives the optimal representation in a minimum of mean square sense, so it is usually used to minify the dimension of high dimensional image pattern modes.

传统的主分量分析方法是最为经典的图像特征抽取方法之一，由于其本质上是在最小均方差意义下给出了模式样本的最优表示，所以它通常被作为对高维图像模式进行降维的一种常用方法。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。