Comparing siphon drainage system with gravity drainage system, the paper considers the siphon drainage system to possess many advantages such as small pipe dia, little installing space, non-sloped suspended pipe, short sewage connecting and underground pipe length etc.
屋面雨水排水采用虹吸排水系统较重力排水系统,具有管径小、所需管道安装空间小、悬吊管道无坡度、下水道连接管和埋地管少等优点。
Compared with gravity drainage system, it has the advantages of small pipe diameter and installing space, non-sloped suspended pipe, less sewage connecting and underground pipes and etc.
与重力排水系统相比,具有管径小、管道安装要求空间小、悬吊管无坡度、下水道连接管和埋地管少等优点。
The research and application of the metal mold vacuum gravity exactitude foundry method on aluminum alloy;
金属型真空重力精密铸造技术的研究及在铝硅系合金铸造上的应用
Aluminum Droplet Combustion in Normal and Low-gravity Environment;
铝液滴在常重力和失重环境下的燃烧(英文)
Numerical Simulation of Gravity Synsedimentary Fault;
重力同沉积断层的数值模拟
Study on Weight and Amount of Block on Hosepipe of Submarine Stocking and Supplying System;
水下储供油系统输油软管压块重力和数量的研究
Optimum Design of Honeycomb Paperboard Based on Stiffness-strength-weight;
基于刚度-强度-重力的蜂窝纸板优化设计
Analysis on grasping stability with weight and its application;
综合重力的稳定抓取分析及其应用
In this case,with selection and non-selection experiments,we studied and evaluated the effect of light,physical features of leaves and gravitation as cues on the whitefly s orientation behavior to locate underside of host leaves.
以扶桑和油麦菜为寄主材料,通过非选择性和选择性实验,研究和评价光照、叶面物理性状和重力3个环境因子在烟粉虱成虫定向行为中的作用。
In the special theory of relativity,the simple expression of gravitation in the small region around earth is derived by considering the infinitude of plane with uniform density but actual earth.
在狭义相对论范畴内,如果考虑地球周围较小区域内的动力学问题,可以用均匀质量密度的无限大平面产生的重力场替代地球的史瓦西场,从而得到较为简单的重力表达式。
The authors also analysed the gravitation influence on the oscillation period of the inertial scale when it is placed in different divtections.
介绍了惯性秤的基本原理,推导出惯性秤在水平、垂直和倾斜放置时振动的动力学方程,并在此基础上研究了惯性秤不同放置时重力对惯性秤振动周期的影响,同时通过实验来验证推导的结果。
