查询词典 ash

The age of volcanic ash hereshows little has changed in millions of years.

这里的火山灰年龄表明在百万年里它几乎没有变化。

Volcanic ash has caused millions of dollars in damage to planes and other aircraft in the past.

过去，火山灰已对飞机和其他航空器造成了上百万美元的损失。

It contains millions of them, beautifully preserved in layers of limestone that are interspersed with volcanic ash.

它埋藏了数百万的各类化石，完美的保存在夹杂火山灰的石灰岩层中。

Finland in particular still seems to be affected by the cloud of volcanic ash.

尤其是芬兰，貌似仍然受到火山尘云的影响。

About two-thirds of Europe's flights were canceled Friday because of the risks posed by volcanic ash in the air.

约三分之二的欧洲的航班被取消三分之二周五由于受空气中的火山灰所带来的风险。

These things on the earth are actually all volcanic ash from volcanic eruptions.

地上的这些物质其实全部都是火山爆发时喷出的火山灰。

The results showed that , The shale has higher volcanic ash activity with calcined temperature from 700℃ to 800℃.

结果发现，在700～800 ℃范围内煅烧的页岩具有明显的火山灰活性，掺入经活化处理的页岩配制的混合水泥具有较好的强度性能。

The age of volcanic ash here shows little has changed inmillions of years.

这里的火山灰年龄表明在百万年里它几乎没有变化。

The amount of lime needed to precipitate aluminum varies with the age and weathering of the volcanic ash.

沉淀Al所需的石灰需要量应随火山灰形成的时间及其风化的程度而变化。

The nuclear winter much discussed during the Cold War in fact does not occur during heavy volcanic ash times.

在冷战时期谈论很多的核冬天是不会在有很重的火山灰期间出现的。

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。