查询词典 retention

The effects of Canna indica Linn and hydraulic retention time in the purifying efficiencies for salty water treatment in TEDA Landscape River were studied in this paper.

通过空白对照和种植美人蕉2组处理系统，研究了美人蕉对泰达景观河道含盐再生水的净化效果以及水力停留时间对水体净化效果的影响。

The soil structure is afferent mineral particles, which also influences drainage and aeration, and the retention of water by capillarity.

土壤结构也受土壤质地的影响，因为不同矿物分子的不同体积会影响排水性和通气性以及对土壤水分的保持能力。

He was in favor of the retention of capital punishment.

他支持保留死刑。

In the determination of methyl acrylate,butyl acrylate and methyl methacrylate in ambient air,the sample was absorbed with active carbon and resolved with carbon bisulfide,and then determined by GC.After the qulitation by retention time and quantitation by external standard method,the good linearity and low detection limit were got.

测定环境空气中的丙烯酸甲酯、丙烯酸丁酯和甲基丙烯酸甲酯时，气样采用活性炭吸附，用二硫化碳解析，直接进气相色谱仪检测，根据保留时间定性，外标法定量，能获得良好的线性和较低的方法检出限，不仅精密度、灵敏度和重复性良好，而且可操作性强，易于在环境监测系统中推广。

In production process of carbon fiber, appropriately increase preoxidation retention time will be propitious to the performance of carbon fiber.

在碳纤维生产过程中，预氧化停留时间适当增加有利于碳纤维性能的提高。

Thus, for both- and- carvone, the infrared, nuclear magnetic resonance spectra, the gas chromatographic retention times, the refractive indexes, and the

因此，-和-的香芹酮的红外，核磁共振光谱，气相色层分析的保留时间，折光率和沸点应该是完全相同的。

This paper is about customer retention of cash card business, and we construct cash card's churning rate prediction model.

本研究即针对现金卡业务顾客之流失行为进行研究，建构现金卡户流失预警模型。

Objective: To assess the value of central venous catheter in treatment of refractory urinary retention in children.

目的：评估深静脉导管在小儿困难导尿中的应用价值。

Therefore, when configuration resolver leather lustre-coating agent uses the alkyd resin and the melamine xylenol-formaldehyde resin and the cellulose nitrate mix method, the retention cellulose nitrate Cheng Mo merit, improves it not to bear the aging, the cold resistant bad shortcoming, undergoes the repeated test, compounds the successful resolver lustre-coating agent to have the very good radiance and softness, bears the stretch, bears scours, becomes the membrane to be smooth.

因此，在配制溶剂型皮革光亮剂时采用醇酸树脂和三聚氰胺甲醛树脂与硝化纤维混合的方法，保留硝化纤维成膜的优点，改进其不耐老化，耐寒性较差的缺点，经过反复试验，配制成功的溶剂型光亮剂有很好的光亮度及柔软度，耐拉伸，耐擦洗，成膜光滑。

This wine is made in a style, which ensures the retention of clean, fresh Chardonnay fruit flavours.

这款酒的酿制风格保证了它干净，清爽的霞多丽果味。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。