查询词典 hydrogen

Because the electrolytic membrane must be kept continually damp, it is necessary to humidify the supply of hydrogen and oxygen.

由于电解膜必须保持持续潮湿，有必要加湿的氢气和氧气供应。

Purpose To study the angiogenesis effects of low molecular weight hyaluronic acid prepared by hydrogen peroxide degradation and by hyaluronidase degradation method.

目的观察2种降解方法制备的低相对分子质量透明质酸对血管生成的影响。

The invention uses benzene carbonic acid as raw material, uses hydrogen gas as reducing agent, and uses ZnO and CeO2 as main accelerating agent. In solid-bed reactor the invention carries out hydrogenation reduction reaction. The reaction temperature is 340-440Deg.C, gas hourly space velocity is 600-4800h-1, hydracid mole rate is 20:1-160:1, the selectivity ratio of benzaldehyde is 99%, and the productivity is above 95%.

该方法以苯甲酸为反应原料，以氢气为还原剂，以ZnO和CeO 2 的复合氧化物为主催化剂，在固定床反应器中，进行气相加氢还原反应，反应温度为340℃～440℃，气时空速为600h -1 ～4800h -1 ，氢酸摩尔比为20∶1～160∶1，采用本发明制备苯甲醛的选择性可达99％，收率可达95％以上。

The invention uses benzene carbonic acid as raw material, uses hydrogen gas as reducing agent, and uses ZrO2, TiO2 and Y2O3 as main accelerating agent. In solid-bed reactor the invention carries out hydrogenation reduction reaction. The reaction temperature is 340-450Deg.C, gas hourly space velocity is 600-4800h-1, hydracid mole rate is 20:1-160:1, the selectivity ratio of benzaldehyde is 96%, and the productivity is above 90%.

该方法以苯甲酸为反应原料，以氢气为还原剂，以复合氧化物ZrO 2 、TiO 2 和Y 2 O 3 为主催化剂，在固定床反应器中，进行气相加氢还原反应，反应温度为340℃～450℃，气时空速为600h -1 ～4800h -1 ，氢酸摩尔比为20∶1～160∶1，采用本发明制备苯甲醛的选择性可达96％以上，收率可达90％。

The thickness of hydride strip has little relationship with hydrogen content.

氢化物片的厚度近似一常数值，与氢含量没有对应关系。

China has invented hydrogen bomb of its own.

中国已经发明了自己的氢弹。

Even so, I did not proceed to argue for the hydrogen bomb in Washington.

即便如此，我也没有去华盛顿参与氢弹研究的辩论。

To my mind nothing is more horrible than a hydrogen bomb

我觉得世间没有什么比氢弹更可怕的了。

China's first atomic bomb was successfully tested in 1964, and its first hydrogen bomb was exploded

氢弹虽然是一九六七年爆炸的，但也不是一下子就搞出来的。

When asked my opinion, I told them,"I believe that the hydrogen bomb is feasible, may be effective, and the Soviets may soon develop it."

当问及我的意见时，我告诉他们："我相信氢弹是可行的，或会是有效的，苏联或会很快就要研发它。"

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。