韧

This paper mainly deals with these two parts:l.the effect of hydrosoluble HP,fibermesh and FDN on cement mortars bend resistant strength and compressive strength under the same operating conditions and with different HP mixtures;2.the effect of HP,FDN moderator,fly ash on the durability of concrete.that is the performance of resisting osmose,erosion and freeze thawing.

研究了HP水溶性高分子"纤维"、FDN高效减水剂与粉煤灰双掺配制的高性能混凝土的耐久性(抗渗透、抗硫酸盐侵蚀、抗冻融性能)。试验结果表明：HP水溶性高分子"纤维"对水泥砂浆和混凝土具有显著的增韧、增强作用，且水泥砂浆的抗压强度随着HP水溶性高分子"纤维"掺量的增加(2%-6%)而提高，抗折强度则降低；在混凝土中加入HP水溶性高分子"纤维"后，抗压强度随着掺量的增加2。

Aware of the enviroment where the cooling water pump of automatic vehicle engine is used and the demand for the use of parts, glass fiber reinforced PPS was ehoosed to make the cooling water pump's paddle wheel oi an automatic vehicle and its water inlet coupling plate.

针对车辆发动机冷却水泵的应用环境及对部件的使用要求，通过理论计算和性能比较，选用增韧增强聚苯硫醚试制了某车辆发动机冷却水泵的叶轮及进水接盘两个部件。

Defined by Chell should be reformulated. As a new control parameter, the integral Jwis proposed to explain the WPS phenomenon.

w积分及相应破坏准则，对Ⅰ型和Ⅲ型WPS增韧问题，给出了一致的解答。

Steel wool floor pad is specially developed polishing and buffing pad. It is used with magnetic cluck. It is ideal to remove die-hard surface dirty, paste wax or polish delicate parquet floor.

本产品厚密而蓬松，强韧而柔软，与磁性吸盘配套使用，主要用于家庭、宾馆、商场等场所的地面清洁、木地板的打蜡和抛光。

The results showed:among the 7 isolates, five isolates of HY3、GY1－3、ZJ1－1、HP1、FC3 had same colony shape, irregular shape, liquidlike, slimy, opacity with smooth surface;the other two isolates had same shape, irregular shape, dry, opacity with coarse surface. By inoculating eucalyptus with the 7 isolates, the plants were infected apparently, and the young plants of eucalyptus in control experiment with tap water were not infected. By cultivating eucalyptus cuttings with the bacterial suspensions without EPS, the incidence of disease was very distinct,but compared with the former bacteria suspension,the incidence of disease has decreased at different degrees. By screening out two isolates of strong pathogenicity and two isolates of weak pathogenicity from the 7 isolates,making the bacterial suspensions with them to inoculate the young plants of eucalyptus, two treatments of cutlings and ramets with rats were set with 5 repetitions in every treatment, the results of data analysis showed: for the cutlings, the bacterial contents in upper and middle parts、upper and lower had significant difference;for ramets with roots, the bacterial contents in upper, middle parts, lower had significant difference between each other; For both the cutlings and ramets with roof, the bacterial contents in xylem and phloem had significant difference. The interaction between vertical and horizontal parts for the bacterial content had significant difference. For the two isolates of HY3 and 93B which were screened out at last,their activities of the cellulase were: 1.955ug/ and 1.288ug/ respectively, and had significant difference; the activities of pectase were: 1.325 ug/and 1.24ug/ respectively, and had no significant difference. The content of EPS extracted from the two isolates of HY3 and 93B was very different: 7.08x10-8ug/cell and 5.17x10-8ug/cell.

结果显示：7个菌株中，其中5个菌株HY3、GY1－3、ZJ1－1、HP1、FC3的菌落形态相同：不规则形状、流体、粘性、不透明、表面光滑；另外2个菌株93B、GN1菌落形态相同：不规则形状、干燥、不透明、表面粗糙；用7个菌株接种剪根桉树苗，发病情况非常明显，而自来水对照实验中桉树苗却不发病；无EPS菌悬液培养桉树剪根苗，发病率也很明显，但是相比原菌液，则发病率有不同程度的下降；从7个菌株中间筛选出来2个强致病性菌株和2个弱致病性菌株，用它们配制菌悬液培养桉树苗，设置剪根和不剪根两个处理，每个处理设置五个重复，数据分析结果显示：对于剪根苗，上部和中部、上部和下部的含菌量有显著的差异，中部和下部含菌量差异不显著；带根苗，上部、中部、下部含菌量彼此之间差异显著；不管是剪根苗还是带根苗，木质部和韧皮部含菌量之间的差异都非常显著；上中下与木韧交互作用中，含菌量差异非常显著；最后筛选出来的强弱2个菌株HY3和93B，它们的纤维素酶活性分别为：1.955ug/和1.288ug/，具有显著的差别；果胶酶的活性分别为：1.325 ug/和1.24ug/，没有显著的差别，而且HY3和93B两个菌株细胞分泌的胞外多糖的含量差异很显著，分别为：7.08×10-8ug/cell和5.17×10-8ug/cell。

This paper discusses the method de-polymerizing gelatinized TDI trihydroxyl adducts and introduces use of the depolymerizing product as toughening agent in perchloroethylene coatings and use in preparation of PU adhesive s.

讨论了胶化TDI三羟加成物的处理方法，介绍了该解聚物作为增韧剂在过氯乙烯涂料中的应用及用于聚氨酯黏结剂的制备，均取得了良好的效果，为胶化聚氨酯废物利用找到了一条处理途径。

The stele includes all primary tissues derived from the procambium consists of pericycle,phloem and xylem.

中柱包括从原形成层衍生而来的全部初生组织，由中柱鞘、韧质部和木质部组成。

RESULTS : The vascular bundle structure is much complicated than the phellem structure and bast structure .

结果：通过对中药材异常构造特点的综合系统分类研究，指出木栓组织，韧皮组织和维管束组织等方面的异型构造，其中维管束异型构造较为复杂。

During its growth and invasion in the host, it can produce phytotoxin, pectinase and cellulase to overcome the tree resistance and stain the host's tissues to blue, inducing the disease symptoms, such as phloem necrosis, namely phloem reaction zone, etc.

该菌在云南松体内的生长侵染过程中，将产生毒素和分泌纤维素酶、果胶酶等酶类以突破寄主组织的防御屏障，使云南松组织发生蓝变，产生病害，诱导形成韧皮坏死区域等症状。

Any of various vascular plants , including seed plants and ferns , having a conducting system of xylem and phloem .

导管植物任何种类的管植物，包括种子植物和蕨类植物，具有和韧皮导管系统

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。