Most studies on nutrient balance have been carried out for crop fields, seldom reports were related to greenhouse systems.
(2)作物吸收养分量远小于设施系统收入量,N、P2O5、K2O每年支出分别为1002、793、1099kg·hm-2,仅占投入量的25%、22%、32%;盈余量分别为3086、3015、2339kg·hm-2,平均盈余率为308%、471%和213%。
The paper analyses the status of activity fields and establishments in urban communities,brings out five principles and some points of activity fields and establishments on setting and design in modern urban communities.
针对目前住宅区内活动场地及设施设置的现状,提出现代住区活动场地及设施设置时应遵循的原则以及不同的活动场地及设施的设计要点。
Study of Systematic Design of Basic Nursery Facilities for Senior Citizens;
老年人基础护理设施系统化设计研究
RESEARCH ON THE EFFECT AND EFFICIENCY OF THE INFRASTRUCTURE SYSTEM BASED ON THE SOFT SYSTEM METHOD
基于软系统方法基础设施系统长效性研究
records storage facilities and system
档案贮存设施和系统
Utility Management System
公用设施工程管理系统
Preliminary Study on Intelligent Control System of Edible Fungi Protected Cultivation;
食用菌设施施栽培智能控制系统初探
Design and Implement of Bi-shield TBM Construction Ventilation System
双护盾TBM施工通风系统的设计和实施
Design and Implementation of an Information Management System of Hospital Medical Equipment;
医院医疗设备管理系统的设计与实施
Design and implement of design flowchart management system for the projects;
项目设计流程管理系统的设计与实施
Design and Implement of Financial Administration Reimbursement Subsystem;
行政财务系统报销子系统的设计与实施
The Design and Realization of Report Sub-system in Engineering Simulation System;
施工仿真模拟系统中报表子系统的设计与实现
Some engineering winter construction accidental heating system design and construction
某工程冬季施工临时采暖系统的设计与施工
radio and wire integration
无线与有线综合系统设施
backup system [aviation fuel receiving facility]
后备系统〔飞机燃料接收设施〕
extend the mass transit system and infrastructure development;
大规模发展集体运输系统与基建设施；
The Implement Design of the Railway Passenger Dss
铁路客运决策支持系统设计实施方案
To be capable for general facility system maintenance.
能进行公共设施，系统的通常性维护。
Research on the ERP Equipment Management System Implementing of the WISCO Rolls Plant Factory;
武钢轧板厂ERP设备管理系统实施研究
Opening Oil and Water Well Construction Design System Research;
开放式油水井施工设计系统应用研究