Fluid resistance small, the drag coefficient and the length of the tube with the same paragraph.
流体阻力小, 其阻力系数与同长度的管段相等.
互联网摘选
The non-chip cutting-press shaping technique of fin tube was researched.
采用无屑切削 - 挤压成形技术加工翅片管.
互联网摘选
STUDY ON INNER FIN TUBE TYPE CATALYST WITH METAL WALL AND CATALYTIC LAYER.
金属壁与催化层一体化内翅片管状催化剂的研究.
互联网摘选
Abstract: A new non-chip cutting-press compound shaping technique of fin tube was presented.
提出了一种新的翅片管无屑切削 - 挤压复合成形方法.
互联网摘选
Development of Preventing Boiler Tube Failure ( BTF) at Abroad and Revelation
国外锅炉炉管泄漏防治工作发展综述及启示
互联网摘选
论述了BFe301-1冷凝管生产工艺的优点及主要问题,对现行生产工艺提出了改进方案。
互联网摘选
文中结合积累的腐蚀数据和某舰船用冷凝器剖管分极报告,建立了BFe30-1-1冷却管腐蚀寿命的可靠性数学模型,并预测了主冷凝器冷却管的可靠使用寿命。
互联网摘选
Analysis on Reason of Tube Rupture for AZD 20-25/ 400 Boiler Economizer and Solving Measures
AZD20-25/400锅炉省煤器爆管的原因分析及解决办法
互联网摘选
The circular tube belt conveyor is a new method for hoisting coal in a vertical shaft.
圆管胶带输送机是竖井提升煤炭的一种新方法.
互联网摘选
TUBE DIAMETER SHALL BE WITHIN 10 % OF NOMINAL DIAMETER WITHIN BEND RADIUS.
管直径须在直径理论值和折弯半径的10%以内.
互联网摘选
A winding distribution model of a SADDLE-TOROIDAL deflection yoke used in color picture tube
彩色显象管环鞍型偏转线圈绕线分布的数学模型
互联网摘选
An Optimized Design of a Deflection Yoke for a 25-inch 700-line Color Picture Tube
25英寸700线彩色显像管偏转线圈的优化设计
互联网摘选
现有的生产不锈钢/碳钢双金属复合管有好多方法,但是都具有相对局限性。
互联网摘选
Taiwan's first test-tube baby, little Master Chang, is a gifted student.
台湾第一个试管婴儿&张小弟,是个多才多艺的资优生。
互联网摘选
