The results show some features as follows: ( 1) Under the condition of the same mix proportion, the secondary concrete has the lower flowability and the better cohesiveness and water retentiveness;

It is suitable for sealing HDPE plastic bags which have lots of advantages including good adherence and retentiveness, recycling usage, Special to leave side and easy to tear.

主要用于HDPE材质的塑胶袋封口上，具有粘着力，保持力极佳，可重复使用，特殊留边，易于撕起。

Experimental study on the fluidity and water Retentiveness of Cement-based Self-leveling Mortar

水泥基自流平砂浆流动性与保水性的试验研究

Apprehension is vivid, retentiveness strong.

理解力清晰，记忆力强健。

He tried to remember her name and he was surprised to find that he could not remember it, although he was proud of the retentiveness and reach of his memory and it had only been six months before.

他努力想记起她的名字但他却惊慌地发现他竟想不起来了，尽管他以博闻强记能记住以前的事儿而自豪。

The main results included: 1. Soil properties such as bulk density, water retentiveness and thermal conductivity under NT was higher than that of CT and RT.

免耕耕层土壤容重高，持水性强，导热率高。

( of memory) deficient in retentiveness or range. Memories of happy days remain with us.

（指记忆力）时间短或范围快乐时光的记忆尚在。

The Retentivity of Metal Ions in Unbleached KP-AQ Pulp of Masson Pinewood

马尾松KP-AQ未漂浆中金属离子滞留性能的研究

The experimental structure indicated that, When monomer MAAMPEA: MAA mole of ratio 1:3, When a AMPS mole of score is 10%, this copolymer has the good dispersivity and the dispersive retentivity.

实验结构表明：当单体MAAMPEA：MAA摩尔比1：3，AMPS摩尔分数为10%时，该共聚物有较好的分散性和分散性保持性。

The profile of metal ions in Masson pinewood is researched by means of SEM EDAX and atomic absorption spectrometer. The content and retentivity of metal ions in unbleached KP AQ pulp of pinewood are studied.

用扫描电镜能谱仪（SEM EDAX）及原子吸收光谱仪研究了马尾松的金属离子分布及马尾松硫酸盐蒽醌（KP AQ）法未漂浆中金属离子的分布及滞留性能。

Retentivity Research on the Stitch Closure of Elastic Fabric Made of Silk Polyurethane Wraped Yarn

真丝/氨纶包覆丝弹性织物缝口保持性的研究

Experimental results indicate that retentivity depended both on the nature of the fruit juices and the vegetable juices as well as on the characteristics of the membrane itself.

试验表明，膜的截留特性与果蔬汁品种和膜自身的特性相关，果汁的处理效果一般优于菜汁。

Water retentivity for low retentive section of red soil in South Guangxi

桂南地区赤红壤低吸力段持水性能的初步研究

The results show that MC can improve the consistency and water retentivity of fresh cement paste significantly, increase the fluidity and setting time of cement slightly.

结果表明：甲基纤维素有显著的增稠和提高水泥浆体保水性的作用，有较小的增塑、缓凝效果；

Retentivity of Metal Ions in Alkaline Pulp of Alnus Wood

桤木碱法浆中金属离子的滞留性能初探

The Design and Implementation of an Instantaneous Retentivity CAT System

医用瞬时记忆力测试系统的设计与应用

The magnetization, the coercivity and the retentivity are 32.549 emu/ g, 137.08 Oe and 2.9766 emu/ g, respectively.

镀钴后样品的饱和磁化率为32.549emu/g，矫顽力为137.08Oe，剩磁为2.9766emu/g。

The content and retentivity of metal ions in unbleached KP AQ pulp of pinewood are studied.

结果表明，原料及未漂浆中都含有复杂的金属离子；

Chromaticity analysis, texture measurement and sensory evaluation displayed that AOB addition in proper amount had no great influence on its original colors flavour and mouth feel, and could increase the water retentivity of the products in some level.

色差分析、质构测定、综合感官评定的指标显示：添加适当比例的AOB对产品原有的色泽、风味和口感无不良影响，在一定程度上还能增加产品的保水性。

Theoretically, there are at least 3 internal factors that in-fluence the susceptibility to airsickness, i. e. receptivity, adaptability and retentivity.

有关晕机病易感性的理论认为：至少有三种内在因素影响着人体对晕机病的易感性，即感受性、适应性和保持性。

Objective Aiming at clinical tests of neural encephalopathy, an instantaneous retentivity CAT system based on C/ S structure was developed to actualize the following functions: medical records management, graphical testing, numerical testing, orientation testing and reports management.

目的设计并开发一个基于c/s结构的瞬时记忆力测试系统，用于脑神经病人的临床测试。