Numerical simulation analysis of pipe in earth covering to large cross-section flat-top burial tunnel

Development of basic covering flux for tundish

中间包用碱性覆盖剂的研制

Study on Tundish Covering Flux for Continuous Casting

连铸中间包覆盖剂研究

Research and Application on Thermal Insulation Mechanism of Covering Flux for Steel Casting Risers

铸钢冒口覆盖剂保温原理探讨及应用

Research and development of new type ladle covering flux

新型钢包覆盖剂的研制

Development and Application of A New Type Covering flux for Steel Castings

新型铸钢冒口保温覆盖剂的研制与应用

Technology Feature and Application Result of 911 Type Lead Liquid Covering Flux

911多型铅液覆盖剂的技术特征及使用效果

Among the four the building hedges structure parts: Doors and windows, wall body, roof covering, the floor, the windows and doors heat insulation which is the main factors of the indoor thermal environment and energy-saving construction is worst.

在建筑围护结构的门窗、墙体、屋面、地面四大围护部件中，门窗的绝热性最差，是影响室内热环境和建筑节能的主要因素。

Routine roof covering structure great majority are that the armoured concrete shows the dyadic flat Ao Yu device roof covering.

常规屋面结构大多数为钢筋混凝土现浇或装置式的平屋面。

○ 3 In operating characteristic test, the BF influent is roof covering and drive training area runoff during four rainfalls.

○3运行特性试验收集了四场降雨中屋面和练车场路面混合径流为进水，研究生态滤沟处理实际降雨径流的运行特征及存在的问题。

The fast development of the large airplane manufacturing industry promotes the study and design of the roof covering space truss of long-span hangar.

大型飞机制造业的迅速发展，促进了大跨度飞机维修库屋盖网架结构的应用。

The Feasibility Research and Development Trend of Utilizing Agricultural Residues Fiber Composite Board as the Roof Covering Materials

农业剩余物纤维复合板作为屋顶覆盖材料的可行性研究

The solution is to build a sliding layer in the roof covering and wall space.

为解决这一问题，可在其屋面与墙面设置一个滑动层解决之。

The Installation Structure Design of Straw Vacant Tiles on Roof Covering

屋面覆盖秸秆空芯瓦安装结构的设计

A covering material made of glass fibers in resins.

玻璃光纤树脂制成的覆盖材料。

Influence on Flies Growth of Different Covering Material

不同覆盖材料对苍蝇生长发育的影响

As a consequence of the above, integration technique of ridge tillage and covering film between furrows measure has the best effect on water saving and yield increasing in this area.

由此综合以上结果可得出，行间覆膜与垄向区田集成措施为黑龙江西部风沙土区节水增产最有效的保护性耕作措施。

The rain-feed and ridge culture covering technology for enhancing drought resistant capacity of cultivated land and another way for solving irrigation problem.

利用免耕垄作覆盖技术提高耕地抗旱能力是解决灌溉问题的又一条途径。

The Rain-Feed and Ridge Culture Covering Technology for Enhancing Drought Resistant Capacity of Cultivated Land

用免耕垄作覆盖技术提高耕地抗旱能力

Application Prospect of Mechanization Mulch Film Ridge Covering and Trench Planting Technology in Plateau Areas

机械化地膜垄盖沟植技术在高原地区的应用前景

The hollow spindle covering machine is applicable to the coverings of bicomponent core yarns such as the covering of a bicomponent core yarn formed by a non-elastic core yarn and an elastic core yarn.

它适用于双组分芯丝包覆，例如一根非弹性芯丝和一根弹性芯丝组成的双组分芯丝包覆。