查询词典 vacuum bulb

In the vacuum tube radio, a lot of space is taken up by these vacuum tubes and a large quantity of beat is produced so that part of the electric power is wasted.

电子管收音机中的很大空间就是被这些电子管占领着的，它们产生大量的热，因此部分电能被浪费掉了。

The reason of RH-KTB system performance declining is analyzed. Not only owing to entry temperature, pressure, flux of water vapor and condenser's bad effect, extraction ability of vacuum pump declines but also there are leaks in vacuum system result in system performance declining.

对系统性能下降的原因进行了分析，水蒸汽的人口温度、压力、流量的变动及冷凝器的冷凝效果不佳而导致的真空泵抽气能力下降以及系统泄漏是导致系统性能下降的主要原因。

Vacuum packaging machine: for food products such as vacuum-packed.

真空包装机：用于食品等产品的真空包装。

Can be imported in any work under pressure, has generally been applied to the vacuum-packed food, plastic industrial vacuum blister forming.

可以在任意入口压强下工作，已普遍应用于食品的真空包装，塑料工业的真空吸塑成形。

Because the vacuum packing machines can greatly extend the shelf life of the food, that is, they enable vacuum-packed food to preserve longer than usual.

因为真空包装机可以大大延长食品的保质期，经过真空包装的食品保鲜期变得比以往长。

Process modification for vacuum seal vessel 355 D 09 and spray water filter 355 F 09 of the batchwise polycondensation vacuum spray water system has been reported.

通过对间歇缩聚真空喷淋水系统真空密封罐 3 5 5 D 0 9和喷淋水过滤器 3 5 5 F 0 9的工艺改造，保证真空喷淋水系统的连续稳定运

Sublimed water from freeze-drying materials frost on cold trap continuously by vacuum pump on vacuum freeze-drying process.

摘 要：真空冷冻干燥过程中，从物料中升华出来的水分在真空泵的抽吸作用下，不断的在捕水器表面结霜。

Perform the vacuum test using HF Electric- Spark Vacuum Tester.

用高频电火花真空检测仪检测真空。

The major products for the cable pressure, machine, cable-hot machine, cable dryer, cable tester comprehensive testing, AC-DC pressure tester, vacuum switch vacuum tester, DC high-voltage generators, fire-retardant heat-tape, such as Die Equipment and accessories, complete specifications, performance good, reasonable price and abide by the contract, implementation of Three Guarantees, the agency checked.

产品主要为电缆压号机、电缆热补机、电缆干燥机、电缆综合探伤测试仪、交直流耐压测试仪、真空开关真空度测试仪、直流高压发生器、阻燃热补胶带、模具等设备及其配件，规格齐全，性能良好，价格合理，信守合同，实行三包，代办托运。

Digital Language nuclear phase meter, intelligent dielectric loss test, instrument megger, frequency series resonance test device, grounding resistance tester, transformer load switch tester, the nuclear-phase high-pressure device, vacuum oil filter, clamp grounding resistance instrument, stray current detector, transformer features an integrated tester, cable fault tester, DC resistance tester, digital relay protection tester, automatic transformation ratio tester, relay protection tester, vacuum tester, Loop resistance tester, wireless high-pressure phase of nuclear device, active transformer capacity tester, insulation oil dielectric strength tester, high voltage switch mechanical properties tester, intelligent switching characteristics tester, light-up-flow devices, wireless instrument of nuclear phase, oxidation Zinc arrester tester, high voltage test transformer, DC high-voltage generator, lightning counter checkers, inductive load DC resistance tester, dielectric strength of insulating oil automatic tester, relay protection test chamber, multi-function test bed, IF DC - Generators

数显语言核相仪，智能化介质损耗测试，仪兆欧表，变频串联谐振试验装置，接地电阻测试仪，变压器有载开关测试仪，高压核相仪，真空滤油机，钳形接地电阻仪，杂散电流测定仪，互感器特性综合测试仪，电缆故障测试仪，直流电阻测试仪，微机继电保护测试仪，全自动变比测试仪，继电保护测试仪，真空度测试仪，回路电阻测试仪，高压无线核相仪，有源变压器容量测试仪，绝缘油介电强度测定仪，高压开关机械特性测试仪，智能开关特性测试仪，轻型升流器，无线核相仪，氧化锌避雷器测试仪，高压试验变压器，直流高压发生器，雷击计数器校验器，感性负载直流电阻测试仪，绝缘油介电强度全自动测试仪，继电保护试验箱，多功能测试台，中频直流发生器

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。