防腐

Speed gearbox 3.1 box and the internal and external anti-corrosion material requirements and body principles.

变速传动箱 3.1箱体材质及内外防腐要求与阀体原则一致。

1 Speed gear box and outside box materials and corrosion requirements be consistent with the body.

变速传动箱 3.1 箱体材质及内外防腐要求与阀体原则一致。

Also applies to air-conditioning ventilation, smoke and dust, corrosion proof, material handling and other various places.

也适用于空调通风换气、消烟除尘、防腐防爆、物料输送等各类场所。

Based on the practice of the use of φ95mm subsurface sucker rod pump in Shengtuo Oilfield in recent years, the causes of the failure of the pump are analyzed, and relevant precautions are put forward:(1)selecting oil wells with sufficient fluid supply for pumping;(2)under the condition of the pump efficiency being the same, the submergence depth of the pump being somewhat larger than that of the small pump, and 450～500m being feasible;(3)adopting Grade H ultrahigh-strength rod string and fixing a sinker bar at the bottom of the rod string;(4)selecting long stroke and low pumping speed, and more than 5m stroke and less than 6min-1 pumping speed being recommended;(5)adopting zirconium oxide valve ball and seat ＋ spray welded plunger ＋ nitrided barrel.

根据胜坨油田近几年采用φ95mm有杆抽油泵提液的实践，分析了造成这种抽油泵失效的原因，包括与其配套的脱节器失效、抽油杆断脱、泵漏、电动机不配套和生产管理不善等。为增强泵的提液能力和工作可靠性，提出5 项预防措施：(1)选择有充足供液能力的油井；(2)在保持相同泵效的情况下，泵的沉没度应略大于小泵，推荐按450～500m设计；(3)采用H级超高强度抽油杆柱，并在杆柱底部配置一定重量的加重杆；(4)采用长冲程、低冲次的参数匹配，推荐光杆冲程大于5m，冲次小于6min-1；(5)为提高泵筒、活塞和阀座的防腐耐磨性，推荐采用&氧化锆阀球和阀座+喷焊柱塞+氮化泵筒&的结构形式。

Gas silicon hydride (SiH4) with a purity over 4N (99.99%) is an electronic grade chemical that's mainly applied to IC, flat panel display, solar battery and optical-fiber manufacturing, and serves as a crude gas for generation of multicrystal silicon and epitaxial film, and purifying film.

纯度4N（99.99％）以上的硅烷（SiH4）气体是一种电子级化学品，主要应用于集成电路、平面显示、太阳能电池、光纤制造等行业，是多晶硅、外延膜生成、硅器件纯化膜和聚硅膜的原料气体，具有很高的防腐性和耐用性，在镀膜等工艺大量使用。

To compare with general nickel coated steel strip, our steel strip with electrodeposited nickel coating is provided with more excellent processing capability and anti-corrosion capability. It can be applied to produce battery steel shell such as alkaline battery, electricizable battery, button cell, etc. This product has already been the developing trend of battery industry instead of actual rolling plating battery steel shell.

我公司生产的覆镍深冲钢带与普通镀镍钢带相比，具有更优良的加工性能和防腐性能，广泛应用于制造碱性电池钢壳、可充电电池钢壳、纽扣电池等电池产品，该产品取代现行滚镀电池钢壳已成为电池行业的发展趋势。

Indoor air sources of formaldehyde are mainly in the following aspects : 1, the plywood used for interior decoration, Ximugongban, medium density fibreboard and shaving board, and other artificial plate because formaldehyde has strong sexual bond, has strengthened plate and the hardness control, corrosion functions, Therefore, the current production of imitation board use Jiaonianji merits to formaldehyde as the main ingredients thiourea aldehyde resins, plate, residual and did not participate in the response formaldehyde will gradually release of the surrounding environment is a indoor air formaldehyde main ;2, using imitation board manufacturing furniture, some manufacturers in the pursuit of profit, the use of unqualified plate. In preliminary front face material reuse inferior glue, the manufacturing processes are not standardized, as a result of customers buying home, to buy a small emission points ;3, containing formaldehyde content and may distribute to the outside other categories decorative materials, such as stickers Qiangbu, with wallpapers, chemical fiber carpet, foam, paint and paint, etc.;4, combustion, emit formaldehyde certain materials, such as cigarettes and some organic materials.

室内空气中的甲醛来源主要有以下几个方面：1、用作室内装饰的胶合板、细木工板、中密度纤维板和刨花板等人造板材，因为甲醛具有较强的粘合性，还具有加强板材的硬度及防虫、防腐的功能，所以目前生产人造板使用的胶粘剂是非曲直以甲醛为主要成分的脲醛树脂，板材中残留的和未参与反应的甲醛会逐渐向周围环境释放，是形成室内空气中甲醛的主体；2、用人造板制造的家具，一些厂家为了追求利润，使用不合格的板材，在粘接贴面材料时再使用劣质胶水，制造工艺不规范，结果顾客买回家去，等于买回了一个小型废气排放站；3、含有甲醛成分并有可能向外界散发的其他各类装饰材料，比如贴墙布，贴墙纸，化纤地毯、泡沫塑料、油漆和涂料等；4、燃烧后会散发甲醛的某些材料，比如香烟及一些有机材料。

This paper reviews researches on ocean engineering protection coatings in recent years, including sea-water anti-corrosion coatings, foul-proof sea coatings, method of research and its development trend.

介绍了海洋工程防护涂料的防腐、防污新技术，以及研究方法和发展趋势。

The cutting fluid features good performances of lubricating, rust-preventing, cooling, washing, rot-proofing and degradation.

该切削液具有优良的润滑性、防锈性、冷却性、清洗性、防腐性和可降解性。

Double Circle Fence wire mesh of the column and a first-dip galvanized in the Office of the Assistant rot measures Welded Fence anti-corrosion, anti-aging, sunshine, fire-retardant, beauty, long life and ease of installation fast and so on.

双圈隔离栅的立柱及网片采用先镀锌在浸塑的助腐处措施，焊接网隔离栅防腐、防老化、抗晒，阻燃、美观、使用寿命长、安装简便快捷等优点。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。