无垢的

There is neither CaSO3's aggradation nor CaSO4's aggradation under the best pH condition of 6 and 5 differently, and 15 of L/G.

上段pH值为6、下段pH值为5、L/G在15左右的脱硫效率和运行工况最佳，无结垢现象发生。

No incrustation in pipe inner wall improves the quality of water and low efficiency results from incrustation.

l 集热管内壁与水隔离，管内壁无结垢问题，解决了水质差或长期无人清理时管内结垢所带来的太阳能不热问题。

PA, PA-11, PA-12 nylon hose has smooth intine, with fluent liquid flow and without stain and fouling.

PA 、 PA-11 、 PA-12 尼龙管的内壁光滑、液体流畅、无生锈、无结垢现象。

Since the late 1990s, fully absorb the CAS technology, in accordance with ISO 9002 quality system standards, the use of advanced technology and the anaerobic first-class production equipment, has been able to stabilize production of high-performance permanent magnet NdFeB magnets 300 tons / year, PM ferrite magnets 500 tons / year, the machine produced a variety of strong magnet, while manufacturing magnetic separator, Qiangci Separators, magnetic drum, Cibang, Jiangci salvage, super-magnetic, permanent magnet DC - Watt, water-purification Anti-magnetic, magnetron sputtering equipment, products sell well all over the country and exports of the United States, Germany, South Korea, North Korea, Vietnam and Hong Kong, Macao and other countries and regions, won the trust of customers.

公司自九十年代末，充分吸收中科院技术，按照ISO 9002质量体系标准，采用先进的无氧工艺和一流的生产设备，已能稳定生产高性能永磁钕铁硼磁铁300吨/年，永磁铁氧体磁铁500吨/年，可加工制作各种规格的强磁铁；同时制造磁选机、强磁除铁器、磁滚筒、磁棒、强磁打捞器、超强磁力架、永磁直流电机瓦、磁化净水防垢器、磁控溅射设备等，产品畅销全国各地并出口美、德、韩、朝、越南及港澳台等国家和地区，深得客户信赖。

Results:The positive rate of HPV-DNA was 41.7%(20/48) and there were no significant difference on HPV infection in different groups of age,smegma and history of balanoposthitis.

结果：48例中，20例阳性，阳性率为41.7%；其中不同年龄段、有无包皮垢及有无感染史组间HPV阳性率均无显著性差异。结论：对需行包皮环切的男孩，应尽早施行包皮环切术。

Is located in the Qingpu District of Shanghai Huqingping 2599, Panda high-tech industrial park, is set research and development, manufacturing, sales automatic Jiaoyun sewage pumps, Sets, air compressor, antiscale Centrifugal pumps, constant pressure fire pump, no suction pipe network frequency automatic pressurized water supply equipment, pipeline cleaning equipment, frequency conversion kits water supply equipment, control cabinet, pressure complete sets of equipment in a body specialized company.

上海熊猫机械集团有限公司坐落于上海市青浦区沪青平公路2599号熊猫高科技工业园区内，是集研究、开发、制造、销售自动搅匀排污泵、高压清洗机、空压机、防垢离心泵、恒压消防泵、变频无负压管网自动增压给水设备、管道清理设备、变频成套供水设备、控制柜、气压成套设备于一体的专业集团公司。

The morphology of calcium carbonate scale withthe presence of the PAA is not in order any more, but can be still observed the shapeof cubic structure. The crystal morphology of calcium carbonate scale with addingP is completely destroyed, and XRD spectrums show the quantity ofcalcite reduces, so the scales become loose, spongy, floccular and amorphous.

添加PAA后尽管表面不再平整但仍能观察到比较规整的四面体晶体结构；而添加P后晶体形状被彻底破坏，垢样成为疏松、多孔、絮状的无定形聚集体。X衍射谱图也表明，添加P后垢样中方解石含量减少甚多，垢样变得疏松。

A highly effective and efficient phosphorus-free, nitrogen-free and biodegradable sequestering agents and detergency builders Polyepoxysuccinic acid was synthesized through negative ion synthesis.

以顺丁烯二酸酐为原料，通过环氧化反应和阴离子聚合的方法，合成了一种无磷、非氮、生物降解性好的环保型阻垢剂聚环氧琥珀酸。

Sometimes you come here not to escape, but to enjoy rain at night of mountain BA. Spot of rain here is clean enough to wash DiaoJiao LOU of life utterly, and color of heart was washed lighter and lighter went through for years only with original cover of sunlight and dew.

尘世间的风雨太大，有时候你就躲到这里，不是避雨，或许就是想看看巴山的夜雨，这里的雨滴清澈无垢，不断地冲洗着生命的吊脚楼，心的颜色经年累月，被冲洗得越来越淡，留下的就是阳光和露水本色的封面。

Combined use of trypsin, hypertonic solution and chemical detergent is a better method to prepare acellular vascular matrix, and the vascular matrix be wellpreserved in liquid nitrogen.

液氮保存后1、2、3月扫描电镜观察与新鲜标本无明显差别。结论酶、低渗溶液、化学除垢剂联合法是制备脱细胞血管基质的较好方法，制得的脱细胞血管基质可放入液氮中保存。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。