The population dynamics and fluctuation of Spodoptera litura (Fabricius) were studied using sex pheromone trap and net cover, the reasons for outbreak of the pest in recent 10 years were searched.
利用性信息素诱捕、网罩隔离等方法,对斜纹夜蛾的种群动态消长规律进行研究,分析了斜纹夜蛾近10余年来连年大发生的原因。
Design on progressive die for shielding case based on UG software
基于UG的隔离罩级进模设计
Design of die for heat shield riveted device assembly;
隔热罩铆合装置总成模具设计
Remove exhaust manifold heat shiel
拆下排气歧管隔热罩。
Install exhaust down pipe heat shiel
安装排气下行管隔热罩。
Starter Heat Shield Remove/Install
启动马达隔热罩拆除/安装
Install exhaust heat shield, tighten bolts to 11 N·m.
安装排气隔热罩，拧紧螺栓到11 N·m。
Remove exhaust heat shield from down pipe.
从下行管拆卸排气隔热罩。
Simulation of Stamping for Car-muffler Heat Insulation-cover;
轿车消声器隔热罩冲压成形模拟分析
The optimization and Analysis of Supercharger Cover Topography in Commercial Vehicle Engine
商用车发动机增压器隔热罩形貌优化分析
The Effect of Heat Shield on Temperature Distribution of Rocket Engine Thrust Chamber
隔热罩对火箭发动机推力室温度场的影响
The basic exhaust system consists of an engine exhaust manifold, exhaust pipe, exhaust heat shield(s), muffler and exhaust tailpipe
基本排气系统包括一个引擎排气歧管、排气管道、排气隔热罩、消音器和排气尾管
muffle of refractory ceramics
隔焰罩,耐火陶瓷制
muffle of fused silica
隔焰罩,熔凝氧化硅制
a soundproof hood for the computer printer
计算机打印机的隔音罩.
Sound Insulation Properties of Layered Damping Stiffened Panels Acoustic Shield;
阻尼复合加筋板隔声罩的隔声性能研究
The spacecraft was fitted with a heat-shield.
太空船装置了防热护罩。
Rothemuhle regenerative air preheater
风罩再生式空气预热器
Application of Aluminum Foam Board in the Lathe Acoustical Enclusure;
泡沫铝板在机床隔声罩中的应用研究
The surgical mask is not as effective at trapping tiny particles and the paper mask is not effective at all.
外科口罩对于阻隔极小微粒并不十分有效，而纸制口罩根本无效。
heater bridge wall couple
加热炉隔墙测温热电偶