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1.In-depth knowledge of supplier base in the following manufacturing processes/products: investment/lost-wax/precision casting, zinc die-castings, Aluminum casting (gravity &pressure), iron casting, permanent mold casting, sand casting, powdered metallurgy, MIM, steel forging, brass forging, cold forming, stamping, deep drawing, fine blanking, machining(milling, turning, etc.), sheet metal fabrication, screw machining, CNC machining, mould making, tool &die, assembly, Fasteners, springs,etc.
对以下金属制造工艺/零部件的供应商有资深专业经验:脱蜡/精铸件,锌合金压铸件,铝铸件(浇铸或压铸),铁铸件,永久模铸件,沙铸,粉状冶金零件,金属粉末注射成形件,钢铁锻造,黄铜锻造,冷锻/冷镦,冲压件,拉深引深件,精密下料,机加件(自动车,数控机床,铣,车,磨等),板金件,制模及模具装配、标准件,弹簧类。收藏指正
2.Oddly, the inferred elapsed time between ejection episodes, about 500 years, is too long to be explained by dynamic pulsations (in which the star contracts and expands, in a gentle tussle between gravity and gas pressure) and too short to represent thermal pulsations (in which the star is driven out of equilibrium).
奇怪的是,不连续喷发的间隔据推估大约是500年,但这段时间实在太长而不能以动力搏动(恒星因重力与气体压力间温和的交互作用,而产生收缩与扩张的现象)来解释,不过却又短到无法用热力搏动(恒星被驱向非平衡状态)来描述。收藏指正
3.Some suggestions were proposed to the calculation of earth pressure in gravity retaining wall design.
对重力式挡土墙设计中土压力的计算具有一定参考价值。收藏指正
4.The micro-sphere with ceylonite as the main phase was obtained, which has the diameter of 0.3~0.9mm, the specific gravity of 3. 17 and fragmenting rate of 23% under the pressure of 60Mpa and can be used as filtering medium in the petrochemical field.
制得了以镁铁尖晶石为主晶相,粒径在0.3-0.9mm。 比重3.17,60MPa压力下破碎率为23%,适宜作为石油化工行业过滤介质的微球。收藏指正
5.The first use of high pressure jet and wash technology in foundation treatment of gravity dam is presented.
文中介绍了高压喷射冲洗工艺首次在我国重力坝基础处理上的应用。收藏指正
6.Solid materials handling and pneumatic conveying system packaged machinery and its equipment and valves are mainly used for conveying, material unloading, dedusting, metering, mixing, packing units in the processing units of the solid materials including powder, particles, powder mixtures and flakes of ABS, PS, PE, PP, POM, SAN, PET, PC, PTA, PVC, BPA, SAP, AS and PMMA in the trades of petroleum, chemical industries, chemical fiber, dye, pharmacy, food, electronic, paper making, natural gas, power, environmental protection, metallurgy and etc.. It is applicable for various pneumatic conveying systems and gravity flow conveying systems under the conditions of diluted-phase, densed-phase, high pressure, low pressure and vacuum pressure.
固体物料处理和输送系统成套机械及其专用设备、阀门主要应用于石油、化工、电力、化纤、染料、医药、食品、电子、造纸、天然气、环保、冶金等领域中固体物料(含ABS、PS、PE、PP、POM、SAN、PET、PC、PTA、PVC、BPA、SAP等粉沫、颗粒物料、粉粒混合物、片状)生产加工过程中输送、卸料、除尘、计量、混合、包装等工段使用,能适用于稀相、密相、高压、低压、负压各种气力输送系统和重力流输送系统。收藏指正
7.Tides of the solid earth, air pressure, high of gravimeter, zero drift and underground water can affect the precision of relatively gravity measurement.
影响相对重力测量精度的主要因素有潮汐、气压、仪器高、零点飘移和地下水变化以及仪器格值函数等。收藏指正
8.The rigidity distribution of the gravity dam is usually determined with many difficulties because of complication of its geometry and the connection with the adjacent portion of the reservoir, as well as the action of hydrodynamic pressure.
重力型挡水坝的型体及与相邻坝段的连接都很复杂,加之还有动水压力的作用,结构刚度分布不易清楚确定。收藏指正
9.Methods The urine and plasma osmotic pressure,the urine and plasma sodium concentration,urine specific gravity and plasma antidiuretic hormone were measured in patients with DI(30 patients)and CSW(10 patients)secondary to traumatic brain injury.
方法 对并发DI (30例 )和CSW (10例 )的中重度颅脑损伤患者进行入院后 30d内的尿 -血渗透压比值 ,尿 -血钠浓度比值 ,尿相对密度 ,2 4小时尿量和血浆抗利尿激素水平的监测。 进行Pearson相关分析。收藏指正
10.Based on the classical plate theory, this paper designed the circular plate of a typical columniform dewar, which is under the mixed load of atmospheric pressure and lateral force due to the gravity of the OMT.
文中针对一种柱形杜瓦容器的结构特点,应用经典板壳力学理论,分析计算了在两种实验工况下,即大气压力单独作用、及大气压力与横向外力同时作用时,圆端板的结构尺寸。收藏指正
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