Materials and Methods: The 40 moloar teeth without alveolysis within one week, were tied with steel wire, treated with root cannel filling or resinifying therapy.

40例患牙折裂后1周内就诊无牙周及根尖周疾病的磨牙，以钢丝结扎患牙，并进行根管充填术术。

Unique straight or spiral grooved feed bush with force cooling system and unique screw ensure high plastification in low temperature, high speed extrusion of material.

独特的带有冷却系统直螺旋开槽加料套和独特的螺杆设计保证了原料的低温，高速挤。

The device comprises a mixing plastifying screw, a machine barrel, a screw driving system, a bracing frame and a bearing arranged on the bracing frame.

该装置包括混炼的螺杆和机筒，螺杆驱动系统，支撑架以及装在支撑架上的轴承。

Superplasticizer mainly absorbs on the cement hydrates covering the surface of cement particles instead of on the surface of unhydrated particles.

超剂主量吸附在水泥颗粒表面的水产物上而不吸附在未水水泥颗粒表面。

Vibration force field was introduced into processing of plastics in tri-screw dynamic mixing extruders,so as to intensifying mixability and dispersion.

三螺杆动态混炼挤机将振动力场引入到物料的混炼挤过程,达到强混炼和分散的目的。

Hombitan LOCR-K is characterized by its high degree of whiteness, It gives neutral colour shade and has strong coloring power.

白度高、中性类色、著色力强, 容易分散在所有热性胶、剂、水体系即溶体系中。

By means of cyanoethylation and chlorination,wood sawdust was converted into thermoplastic material and then compounded with short sisal fibers.

通过氰乙基反应,使木粉转成为热性材料,再与短切剑麻纤维混合,热压制得植物纤维增强植物纤维基复合材料。