down-flow怎么记

Hydrogenation of Pt/ SAPO-11 isomerization catalyst and effect of benzene on n-tetradecane hydroisomerization were investigated using benzene hydrogenation as a model reaction in a 10 mL fixed-bed down-flow reactor system.

在10mL连续流动固定床反应装置上，以苯的转化为模型反应考察了Pt／SAPO-11异构化催化剂的加氢性能及苯对正十四烷异构化反应的影响。

The valves controlling the flow of gas from the main terminal in Port Said, on the Mediterranean coast, were shut down to dampen the flames and people living nearby were forced to leave their homes.

在地中海海岸的塞得港，控制着来自主终端的燃气输送的阀门已关闭以降低火势，而住在附近的居民被迫离开自己的家。

The result shows that under stable circulation, the movement of Iran Plateau air mass toward northeast and the thermal advection and directive down flow are the main causes of the persistant warm weather and the high temperature record.

结果表明，造成气温持续偏高和破历史极值的主要原因是：在稳定的环流形势下，伊朗高原的暖气团北上东移，暖平流输送辐散下沉气流增温。