Resinification of furfural on the catalyst was the main cause of deactivation.

This process is endothermic with rapid carbon deposition and deactivation of the catalyst.

此过程是吸热的,同时很快发生碳积沉并使催化剂活性减低.

There can be important consequences of activation or deactivation.

在这里可能有活化或钝化的重要结果.

Arsenic removal the activated catalyst, is no longer required after the use of activated until deactivation.

脱砷催化剂经活化后, 以后使用不再需要活化,直至失活.

Should I walk the path if my world's so dead ahead?

如果我的世界就在前方,我应该选择这条既定的道路 吗 ?

Iceberg dead ahead! SOS ! Man the lifeboats! We're going down! There, isn't that a comfort ?

快撞上冰山了!救命 啊! 快放救生艇! 我们正在下沉! 瞧, 有用 吧 ?

Fred moved toward the orbital elevator dead ahead.

佛瑞德笔直冲向轨道电梯.

Tom understood: they needed cover. And the only cover was dead ahead in the factory.

汤姆明白: 他们需要掩护, 而唯一的掩护已经死在了前面的工厂里.

The laboratory is dead ahead.

实验室在正前方.

Theso-called kitchen, is when the marriage red carpet dead ahead.

所谓厨房, 就是结婚时红地毯通向的正前方.

A fishing boat came out of nowhere, dead ahead.

一艘渔船不知从什么地方冒了出来，就在正前方。

The ground is dead ahead.

这块场地就在前面.

WORF: Captain, there are three dead ahead.

舰长, 有三艘 罗慕伦 战鸟在正前方现形.

The school is dead ahead about two miles from here.

从这儿算起,学校就在前面两英里处左右.

The station is dead ahead.

车站就在前面.

I know what we have is dead and gone.

我知道我们的爱已经凋零.已经过去.

And though you're dead and gone believe me.

虽然你已经安息了但相信我.

They are all dead and gone.

他们全都死了.

The old man was very lonely because so many of his friends were now dead and gone.

那个老人很孤独,因为他的许多朋友现在都已不在人世.

I often recall my childhood which is dead and gone.

我常常回想起我那早已逝去的童年.

He will be a man for you when I am dead and gone.

一旦我老去,他将是你依靠的男人.