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In order to obtain the best anticorrosion method,experiment study of corrosive characteristics about tube and rod materials which are nitrified and untreated was made under different corrosive mediums and 80 centigrade temperature,the anti-corrosion effect of tube and rod under well was appraised.

为获取最好的防腐处理方法,在80℃和不同腐蚀介质的条件下,实验研究了氮化处理和不处理管杆材料的耐腐蚀性能,对管杆材料在井下的防腐效果进行评价。

Boundary friction is independent of the guide material used.

边界摩擦与导纱杆材料质地无关。

Relations between material parameters of tungsten-alloy rod and its ballistic performance

钨合金杆材料属性与侵彻性能的关系

High-strength stem materials with one-piece thru-disc design.

高强度阀杆材料,采用整体穿过蝶板的设计技术。

Mast: A vertical spar or pole to which a sail or sails attach.

桅杆：一种垂直圆材或杆，用来悬挂船帆。

Waste balloonflower plant production become fashionable in the new building materials market

废弃农作物秸杆料染绿新型建材市场

The Distribution Law of the Materials in the Compound Extruding of Cupplng-Cupping Bar(Ⅱ)

杯—杆型复合挤压的材料分配规律(Ⅱ)

Interlaminar Stresses of a Laminated Composite Bar under Bending (Ⅰ)

叠层复合材料杆弯曲的层间应力(Ⅰ)

RTM Processing Simulation of A Thick Wall Composite Link

复合材料厚壁连杆的RTM工艺模拟研究

Discussion on the Improvement and Application of Bolting Material at Roadway

浅谈煤巷锚杆支护材料的改进与应用

Experiment on the Production Technology of Cotton Stalk & Wood Composite Particle Board

棉杆/木材复合碎料板生产工艺试验

Investigation on the measurement of mechanical impedance properties of a composite bar

复合材料杆件机械阻抗测试方法研究

"Most common uses in valves are: stem, body and ball materials."

这种材料在阀门上主要用做:阀杆,阀体和球体材料。

Material, such as wire, stakes, and rails, used in the construction of fences.

筑栅栏的材料线、柱子及横杆等用来建造栅栏的材料

a spar rising aft from a mast to support the head of a quadrilateral fore-and-aft sail.

从船尾桅杆伸出支撑船头四方形的船帆的圆材。

Study on Screw Die for Extrusion of Wide-Thick Rubber Sheet

挤出宽幅厚橡胶板材的螺杆分配机头的研究

The Design of Twin-Screw Extruder Die for Special-shaped Profile

挤出异型材用双螺杆挤塑机机头模具的设计

Materials Selection of Conn-rod Aluminium Alloy Die-casting Dies and Combined Reinforcement Treatment

连杆铝合金压铸模选材与复合强化处理

Characteristics of Elastic Deformation of Anisotropic Composite Material Bar Member

各向异性复合材料杆件弹性变形特征分析