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- When the pipe diameter ratio varies a little,the local resistance loss of sudden contraction changes insignificantly. 存在一个最佳弯径比,使得水平弯管的局部阻力损失最小。
- local resistance loss 局部阻力损失
- The new muffler device has simple structure,it has lesser effect on the resistance loss of chief ventil... 该消声装置结构简单,对主要通风机的阻力损失影响小,防尘、防潮及降噪效果明显,可广泛的应用于煤矿主要通风机的消声降噪。
- For example, the Capacity of Jet Fanin tunnel,the flux distribution and resistance loss in the chimney. 重点研究了射流风机在隧道内的的调压性能,竖井三通的气流分布以及局部阻力损失。
- Because of local resistance, federal intervention may be necessary to designate certain sites for hazardous-waste-disposal facilities. 由于地方上的阻力,或许有必要通过联邦政府的调解来指定某些近便的有害废物处理
- Local resistance coefficient of water cut oil in the plunger is an important parameter to design and calculate in actual production. 含水原油在柱塞凡尔中的局部阻力系数是实际生产中进行设计、计算时十分重要的参数。
- Presents the theoretical calculation formula and performs experiments of frictional resistance loss for PP-R hot water pipes. 给出了PP-R热水管沿程阻力损失的理论计算公式,并对其进行了实验研究。
- In 1942, Hepburn helped save a British paratrooper's life by serving as a liaison between the soldier, hidden in a forest, and a local Resistance fighter. 一九四二年,夏萍协助救了一位英国伞兵的性命:那伞兵躲在森林,夏萍充当他和市内一位地下战士的联络人。
- According to the analysis on pressure of three kinds of duct systems,concludes that the total pressure of a fan should be equal to the resistance loss of the duct system. 通过对三种风道系统的压力进行分析,认为应根据风机全压等于风管系统阻力损失来选择风机。
- The predictions of resistance loss using CFX for two configurations of silencers are compared with experimental results, and the relative error is within 5%. 用CFX计算了两种结构水消声器的阻力损失,并与实验结果进行了对比分析,其误差控制在5%25以下。
- In comparison with other centrifugal gas-liquid separators, the resistance loss of the axial flow guide vane type gas-liquid cyclone separators was less. 轴流导叶式气液旋流分离器与其他离心式气液分离器比较,其特点是阻力损失小。
- The valve has the features of simple structure, free operating, good sealing, little in local resistance losing, quick cut-off, convenience in maintenance and hard to distortion etc. 该产品具有结构简单,操作自如,密封性能优良,局部阻力损失小,切断快,维护保养方便,不易变形等特点。
- When the body is due to a cold, over-exertion, a sharp drop in blood tonsil, glandular secretion decline, resulting in decreased local resistance, the bacteria break caused tonsil infection, acute laryngitis. 当机体因受凉、过度劳累时,扁桃体血流锐减,腺体分泌减少,造成局部抵抗力下降,细菌乘虚而入引起扁桃体发炎、急性咽喉炎。
- The local resistance of sewage flows as two-phase fluid is larger than that of water flows under the same conditions. The accrual is variable according to different concentration, properties and size composition of contamination. 污水两相流动时的局部阻力大于清水流动时,其增加值随着污染物浓度及污染物的性质和粒径组成的不同而有所变动。
- Because there are many throttles and other local resistance segment, so this paper have research the pressure drop of the abrupt contractions/abrupt expansion/ elbow/ valve in detail. 由于井口到集气站的地面管汇涉及诸多节流管件,因此文中详细研究了采气管线突扩接头、突缩接头、弯头、阀门等管件的局部阻力损失所造成的压降。
- Abstract: Numerical simulation is carried out for three-dimensional flow in three types of undulated pipes with different geometrical condition, for analysis on resistance loss of flow in bend duct. 摘要:为分析弯曲管道内部流体流动的阻力损失,分别对不同几何条件下的3种波浪管内部流动进行了数值模拟。
- At the condition of continuous direct current, the increasing of local resistance and electrochemical reaction between electrodes and materia l hinder the proceeding of electroosmotic dewatering. 在连续直流电渗透脱水中,局部电阻的增大和电极与物料接触处的电化学反应,严重阻碍了电渗透脱水的进行。
- Air valve size and airflow resistance losses of valves always speed and the size of the spring-loaded edge. 气阀阻力损失大小与气流的阀隙速度及弹簧力大小有关。
- A syndicate of local businessmen is bidding for the contract. 一个当地企业家的联合组织在向这一合同投标。
- My husband is a history teacher at the local school. 我丈夫是本地学校的一位历史教师。