1) pipe steel for transportation
输运管材
2) pole transporter
管材运输车
3) timber transportation management
木材运输管理
1.
According to problemes existed in timber transportation management,measures were proposed like enhancing leadership and construction of timber inspection station,establishing Patrol etc.
木材运输管理是森林资源管理的主要环节和重要手段,是对森林采伐限额制度执行情况监督的必要措施,由于受短期和局部利益的驱动,一些木材经营者为追求高利润,采取不法手段,千方百计地进行木材违法运输,也有部分木材检查站由于管理不善,也存在执法不严和违纪犯法现象,为此,提出了加强对木材检查站的领导和建设、建立巡警队或稽查队加强对木材运输的检查、实行县(市)内木材运输证制度、进一步完善林业法律、法规和规章及强化宣传等措施。
4) Consumable Materials Management System for Steel Transportation
钢材运输耗材管理系统
1.
Design and Development of Consumable Materials Management System for Steel Transportation
钢材运输耗材管理系统设计与开发
5) timber transportation
木材运输
1.
In this paper a brief description of application of the operation research to overseas timber transportation is given.
木材运输生产成本一直制约着木材生产总成本。
2.
In our country the timber transportation management was executed by certificating of timber transportation system.
我国的木材运输管理实行的木材凭证运输制度,木材从生产地向消费地转移过程中,必须持有林业主管部门核发的木材运输证,并接受林业检查站的检查监督。
3.
Based on the analysis and the characteristics of timber transportation,the mixed transportation model was built with nonstop and secondary transportation.
在分析木材运输过程的基础上,结合木材运输的特点,建立了木材直达、中转混合运输问题的数学模型。
6) wood transportation
木材运输
1.
Through analysis and evaluation on four kinds of wood transportation models commonly used in our country s southern artificial forest area,the result shows that under the same operation conditions,the economic benefits,ecologic benefits,social benefits and comprehensive benefits of different operation models of different wood transportation are different.
对南方人工林伐区的常用4种木材运输作业模式进行综合效益分析与评价。
2.
If this system can be produced in batches and applied into practice,it would be helpful to promoting the supervision level of the forestry department of county government over lumber logistics and cracking down effectively on illegal wood transportation.
应用GPS接收板、GPRS MODEM、微程序控制器3个模块研制了木材物流车载定位仪,如能批量生产并投入应用,将能提高县林业局对木材物流的监管力度,有效地打击非法木材运输。
补充资料:半导体的导电与电荷输运
半导体的导电与电荷输运
conductance and charge transport in semiconductor
“一斋<:>厂rE嚼。:丈“E4fod二于声学声子散射,r一3厂/8一1.18;而对于电离杂质散射,r二315厂/512=1 .93。在:与能量无关的情况下,r一1。如果n》P,有R一r(二皿)2一3 一 一一 、/ r /、式中E为电子能量。对P之0,有 e
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条