查询词典 retention

Based on measuring the diameter and friction coefficient of treated and untreated wool fibers, the principle of anti-pilling by using sol-gel technology was explained Besides above, anti-pilling finishing by using cross-linking agent for low twist knitted cotton fabric was also researched in this paper. Due to the strong damage to the strength of the knitted cotton fabric (bursting strength retention rate is 55%) by citric acid treated, main researching focus was on the application of SDP resin. The optimizing treating condition was selected from the results of the orthogonal experiment.

针对单独使用柠檬酸处理时织物强力损伤较大(顶破强力保留率55%)的问题，重点研究了SDP交联树脂处理时各个工艺因素的影响，通过正交实验，筛选出了最佳处理工艺，此工艺下处理的棉针织物的起毛起球等级可以提高1.0-1.5级，其顶破强力保留率达到60%-65%。

The current middle school, primary school enrollment rate reached 98.5% and 100%, retention, respectively, 99% and 100%, one county in the rate of entrance of the Kodak line of the city's first Habitat for five consecutive years.

目前初中、小学入学率分别达到 98.5%和 100%，巩固率分别达到 99%和 100%，县一中高考本科达线率连续五年居全市第一。

To estimate the bioconcentration factor of benzene derivatives in fish by gas chromatography retention time, this paper measured the BCF of chlorobenzene, o-chloro-toluene, p-dichlorobenzene, m-dichlorobenzene, 1,2-dichlorobenzene, nitrobenzene, p-chloro-aniline, p-chloro-nitrobenzene, and 4-chlorodiphenyl in grass crap, and the t_R of test derivatives on the stationary phases of six kinds polarity.

为了用气相色谱保留时间估算取代苯类化合物在鱼体内的生物富集系数，测定了草鱼对氯苯、邻氯甲苯、对二氯苯、间二氯苯、邻二氯苯、硝基苯、对氯苯胺、对硝基氯苯、4-氯联苯9种取代苯类化合物的BCF和不同取代苯化合物在6种不同极性固定相上的tR，建立了tR与BCF的一元回归方程及tR一阶分子连接性指数(1XV)与BCF的二元回归估算方程。

Sandy soils contain at least 85% sand and not more than 10% clay. They are light and drain well. However, retention of nutrients and water is poor.

在沙质土壤中含有85%以上的沙和近10%的粘土，因此具有质量轻，排水优良的特点，但对于营养物质与水的保持力就较低。

Carbon nanotubes after oxidation and purification were used to pack a micro-column which was incorporated into a sequential injection system for facilitating online selective sorption of lysozyme from egg-white. The retained protein was afterwards quantitatively eluted by a carbonate buffer. With a sample loading volume of 2.0 mL, an enrichment factor of 12 was obtained, along with a retention efficiency of 100% and a recovery rate of 100%.

将多壁碳纳米管经氧化和提纯后装入固相萃取柱，在顺序注射系统中实现对蛋清中溶菌酶的在线选择性萃取，以碳酸盐缓冲溶液定量洗脱，进样量为2 mL时，富集倍率为12，吸附率和洗脱率均为100%，采样速率为10 h^(-1)，精密度为3.0%。

In comparison with the pure standards and the retention indices RI(subscript s reported in the literature, a total of 302 volatile compounds were identified in Changyu XO brandy, including 30 alcohols, 35 aldehydes and ketones, 20 carboxylic acids, 104 esters, 24 substituted benzenes and derivatives, 14 phenolic derivatives, 14 acetals, 16 furan derivatives, 22 terpenic and norisoprenoidic derivatives and 23 others.

实验先采用液－液萃取方法提取张裕XO级白兰地的挥发性成分，然后将酸性成分与碱性和中性成分分离，再采用柱色谱分离手段将其分离为若干个级分并浓缩，采用气相色谱-质谱、标准品比对、保留指数值比较等方法对分离得到的各级分中的成分进行了鉴定，在白兰地中共鉴定出302种挥发性成分，包括醇30种、醛酮类35种、酸类20种、酯类104种、苯同系物及其衍生物24种、酚类14种、缩醛14种、呋喃类16种、萜烯类22种和其他物质23种。

The neutral/basic fraction was furthermore separated into 4 fractions using silica gel normal phase chromatography, and each fraction was then concentrated and analyzed using gas chromatography-mass spectrometry. In comparison with the pure standards and the retention indices reported in the literature, a total of 302 volatile compounds were identified in Changyu XO brandy, including 30 alcohols, 35 aldehydes and ketones, 20 carboxylic acids, 104 esters, 24 substituted benzenes and derivatives, 14 phenolic derivatives, 14 acetals, 16 furan derivatives, 22 terpenic and norisoprenoidic derivatives and 23 others.

实验先采用液-液萃取方法提取张裕XO级白兰地的挥发性成分，然后将酸性成分与碱性和中性成分分离，再采用柱色谱分离手段将其分离为若干个级分并浓缩，采用气相色谱-质谱、标准品比对、保留指数值比较等方法对分离得到的各级分中的成分进行了鉴定，在白兰地中共鉴定出302种挥发性成分，包括醇30种、醛酮类35种、酸类20种、酯类104种、苯同系物及其衍生物24种、酚类14种、缩醛14种、呋喃类16种、萜烯类22种和其他物质23种。

Methods The sample was separated with a C18 column (150mm×4.6mm, 5μm) at 30℃ with the mobile phase of methanol and water (74:26); A fluorescence detector was used (λex=230nm λem=460nm); The floss rate was 1mlmin^(-1) Results The retention time of aesculin was(3.620±0.05)min; A good linear relationship of aesculin in the plasma samples at the concentration between 0.1mgL^(-1) and 100mgL^(-1) was observed (r=0.997); The mean absolute recovery was 74.0%~82.6% and the lowest detective limit was 0.05ng; Both the intra-day and inter-day precisions were less than 9.0%.

以C18柱(150mm×4.6mm，5μm)分离；流动相为甲醇－水(76：24)；流速：1mlmin^(-1)；柱温：30℃；荧光检测器，激发波长230nm，发射波长460nm：结果秦皮甲素的保留时间为(3.620±0.05)min；血药浓度在0.1~100mgL^(-1)范围内线关系良好(r=0.997)；绝对回收率为74.0%-82.6%，日内、日间精密度均＜9.0%，最低检测限为0.05ng。

In 1999, the Liaoning provincial important Sci-Tec started a key problem project for the technology of protecting and preventing of dangerous river bank and plain reservoirs. Under the support of this project, this research was carried out for experiment of engineering properties and bank engineering applications of geosynthetics. In order to solve the life and soil retention criteria of geosynthetics problems in bank engineering applications, the indoor tests, in-situ tests, locale antitypes tests and observations, theory analysis, and engineering examples analysis have been performed.

结合堤岸防护工程实际条件，采取室内试验、野外试验、工程现场原型试验或观测以及理论分析和大量工程实例验证分析的方法，对堤岸防护工程中应用的土工合成材料相关工程特性，尤其是老化规律和较大孔径织造布保土性准则，进行了较系统、深入的试验研究；在此基础上，通过典型工程实例及大量工程应用实践总结分析，重点对土工织物软体排、土工模袋、土工膜堤岸防护工程的设计方法和施工技术进行了研究。

On the basis of trial-producing down /kapok battings,the compressive and warmth retention properties of these battings are investigated in this paper.

在试制羽绒/木棉混纤絮料的基础上，对其压缩性能和保暖性能进行了测试分析。

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％。