The cooperative ordering policy model for a kind of lot for lot supply chain is analyzed.
分析了一类特定的直运型供应链的订货策略的合作模型 ,直运型供应链是指由一个处于上游的供应商和若干下游的直运分销商组成的供应、销售网络 。
Study on the nitrate vertical transport rule in farmland soil of Tai Lake area;
太湖地区农田土壤中硝态氮垂直运移的规律
By simulating soil column in laboratory, the nitrate vertical transport characteristics in farmland soil in Fengqu region of Henan Province were studied.
采用室内土柱模拟的方法 ,研究了封丘地区农田土壤中硝态氮垂直运移规律 。
In this paper, through using the simulating soil column indoor, the nitrate vertical transport rules in farmland soils in Fengqu r.
采用室内土柱模拟试验方法对封丘地区农田土壤中硝态氮垂直运移规律进行了研究。
The vertical movement of phosphorus was more active in waterlogged soil than that without waterlogged.
在田间条件下 ,采用同位素 ( 3 2 P)标记的方法在太湖地区土壤较具代表性的宜兴和常熟两地研究了可溶性磷进入水田后的垂直运移情况。
Two typical soils(meadow marsh soil and humus marsh soil),located in zones different in moisture regime in Calamagrostis angustifolia wetland of Sanjiang Plain,were selected as study objects,and the vertical movement rules of nitrate nitrogen(NO-3-N) and ammonia nitrogen(NH+4-N) in them were studied by simulating soil column.
选择三江平原小叶章湿地不同水分带上的两种土壤类型(草甸沼泽土和腐殖质沼泽土)为研究对象,运用模拟土柱的方法,研究了两种土壤中硝态氮和铵态氮的垂直运移规律。
The Er Bai Fang Zi wetland was chosen as the research target in simulating the vertical movement of nitrate nitrogen and ammonia nitrogen in wetlands at a certain water table.
以二百方子湿地为对象,模拟研究了沼泽湿地硝态氮和铵态氮在一定水位条件下的垂直运移过程。
The key point of concrete construction in Cihe invert siphon project are the vertical transportation of pipeline concrete placement and the construc tion of moid plate procesa Through comparing with similar engineering and analyzing the real situation, the vertical transportation and mold plate construc- tion are determined after systematic verificatioa.
磁河倒虹吸工程混凝土施工的关键点在于管身段混凝土浇筑的垂直运输及模板工艺的施工。
In order to handle the vertical transportation in the construction of 454m tall Shanghai Broadcast Television Tower, 88HC tower crane is refitted, and self- lifting and attached type operation is adopted according to the tower construction requirments.
改制88HC塔机,并根据电视塔施工实际分别进行自升和附着转换作业,是454m高上海广播电视塔工程垂直运输处理的主要特点。
The analysis indicates that the vertical motion in the WPSH area is mainly caused by the latent heat release of mons.
分析指出副高中心的下沉气流主要是由副高南北两侧雨带中凝结潜热释放效应所致的上升气流在高空下沉而产生的,副高中心垂直运动的出现有利于副高的加强。
The focuses of the analyses are on the vertical motion and water vapor supply which affect the formation of precipitation.
通过分析NCAR CCM3气候模式的15年积分结果,从形成降水的垂直运动和水汽供应条件的角度,试图揭示该模式在东亚季风区产生不合理虚假强降水的可能原因。