查询词典 vacuum bulb

To keep a fresh supply take one or two cloves from each bulb and replant them.

保持新鲜供给要花一至两丁香每个灯泡和补种。

An incandescent bulb and fiber were used to collimate light into this speedometer indicator .

白炽灯泡和光纤利用使光平行打入到里程计指标。

There is a small bulb placed at focus of a concave mirror.

可改成 凹面镜焦点处有一个小灯泡。

The image of a bulb filament is formed on a screen by a convex lens.

若透镜的上半部份用一块布遮盖起来，下面何者是对的

Image of a bulb is formed on the screen by a convex lens.

把透镜稍为移向灯箱，要影像重新形成在屏幕上，下列哪些叙述是正确的

Herbs perennial, with a rhizome, bulb, or corm, rarely shrubby or treelike.

多年生草本，有根状茎，鳞茎或者球茎，很少灌木状或者乔木状。

A thin skin or membrane .A loose, membranous outer covering of a bulb or corm, as of the onion, tulip, or crocus.

皮膜球茎或鳞茎，如洋葱、郁金香或番红花的球茎的一种松散的、薄膜状的外皮

Any of various protective or ornamental coverings used to screen a light bulb.

挡住电灯泡的光线，避免直视的一种装饰性的保护罩。

Using the crocodile clip, connect one piece of wire to the positive terminal of the battery and one of the terminals on the bulb holder.

利用一段电线的鳄鱼夹连接电池的正极和灯泡底座的一个接头。

Book this introduce design entirely electric to control and pursue, ladder-shaped picture, chronological chart, wiring diagram, flow chart and PLC procedure, should design and use bulb come and realize whole simulation course of experiment, in the course of designing, have done a lot of relevant experiments , for example: Only according to get up and park PLC of circuit design, crossway lipstick PLC of green light design.

本书介绍了整个设计的电气控制图，梯形图，时序图，接线图，流程图和 PLC 程序，该设计运用了灯泡来实现整个实验的模拟过程，在设计过程中，做了许多相关的实验，例如：单按起停电路的 PLC 设计，十字路口红绿灯的PLC设计。

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。