聚甲醛

To make the measure of area of large-grained spherical copper powder reach 70~80% of the working area or so, achieving the purpose of even alternately distributing of copper powder and POM. It has a good comprehensive ability of load-bearing, friction and wear endurance, creep resistance and heat conduction.

我们通过机械加工，使大颗粒球形铜粉分布在工作面的面积达到70~80%左右，形成铜粉与改性聚甲醛基本均匀相间分布的状况，其承载能力、摩擦磨损性能、抗蠕变能力和导热性等综合特性较好。

The slide-way of DF-8 high-strength, steel-base modified polyformaldehyde composite material is a kind of five-layered composite material composed of steel base, small-grained spherical copper powder, large-grained spherical copper powder, screw copper nail layer, superficial plastic, with the bearing structure.

DF-8高强度钢基改性聚甲醛复合材料轴承是由钢基体、小颗粒球形铜粉、大颗粒球形铜粉、螺旋铜钉、表层塑料构成的五层复合材料轴承。

The slide-way of DF-8S high-strength, steel-base modified polyformaldehyde composite material is a kind of five-layered composite material composed of steel base, small-grained spherical copper powder, large-grained spherical copper powder, screw copper nail layer, superficial plastic, with the slide-way structure.

DF-8S高强度钢基改性聚甲醛复合材料滑道是由钢基体、小颗粒球形铜粉、大颗粒球形铜粉、螺旋铜钉层、表层塑料构成的五层复合材料。

The retinae of 4 old cats (12 years,3-3.5 kg) and 4 young cats (1-3 years,2-2.5 kg) were selected.

取老年猫(12龄，3～ 3 5kg)和青年猫(1～ 3龄，2～ 2 5kg)各 4只的视网膜，经 4 %多聚甲醛处理后，用H 。

The retinae of 4 old cats(12 years,2.5-3 kg) and 4 young adult cats(1-3 years,2-2.5 kg) were collected.

取老年猫(12龄，2.5~3 kg)和青年猫(1~3龄，2~2.5 kg)各4只的视网膜，经4%多聚甲醛处理后用H。

Non-metal material adopt nontoxic, wear-resistant POM material to make. It meets GMP requirement completely. Main elements adopt Siemens, Schneider, Proface, Mitsubishi, Omron, Seiko and other famous brand, to guarantee reliable running of the machine.

非金属材料采用无毒、耐磨且不易产生脱落物的进口聚甲醛材料制作，完全符合GMP规范要求；主要原器件选用德国西门子、法国施耐德、日本Proface、三菱、欧姆龙、日本精工等国际知名公司产品，确保机器的可靠运行。

B:Oocytes and early embryos were permeated in 0.5%Triton X-100 for 10 minutes,then fixed in 4% paraformaldehyde/PBS.Method C:Oocytes and early embryos were fixed in 1%PFA while permeated in 0.2%Triton X-100 at the same time for 1 hour.Method D: Oocytes and early embryos were fixed in precooled methanol(-20℃) for 15 min,then permeated in 0.5%Triton X-100 for 10 minutes.

方案A：先用4%多聚甲醛固定1h，再用0.5%Triton X-100穿透10min；方案B：先用0.5%Triton X-100穿透10min，再用4%PFA固定1h；方案C：用1%PFA+0.2%Triton X-100同时固定与穿透1h；方案D：用-20℃预冷甲醇固定15min，再用0.5%Triton X-100孵育10min。

It is made of high quality low-carbon steel, sintered porous bronze as its interlayer, with the

该产品是以优质低碳钢板为基体，中间烧结一层多孔青铜层，表面轧制一层改性的聚甲醛。

,these animals were sacrificed via the way of infusing Zamboni fluid into aorta with the help of aortic cannlation.

方法云南成年健康雄性猕猴5只，平均体重6kg左右，氯氨酮（0.25ml／kg）肌肉注射麻醉后，Zamboni液经心脏主动脉插管灌注固定动物，取瓦脊髓节段入4％多聚甲醛后固定（4℃）6小时。

Its inside portion is made from POM, in order to satisfy the non-removable assembly characteristics between the pump-bottle unit and the lid.

其内的部分是由聚甲醛，为了满足非移动大会特性之间的泵瓶股和盖子。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。