许多种蓝藻有固氮的能力.Among the blue - green algae are many species of nitrogen fixation.菌根起着固氮和贮氮的作用.Mycorhizae perform the function of nitrogen fixation and storage.根瘤菌是生物固氮的能手.Nodule bacteria are very good at biological nitroge...
If the engine backfires , the sudden pressure in the intake manifold forces the valve back.如果发动机回火, 进气歧管骤增的压力就迫使阀门向后移动.Also , this is why changing menus dynamically sometimes backfires.这就是为什么动态地改变菜单有时候事与愿违.My old car bac...
Want to seek rate steadily below the premise that assures quality.要在保证质量的前提下稳步求速度.Downward blowing and circumfluent hot - air assures even drying and high efficiency.特设下吹风管及环流排风功能,保证塑料干燥温度均匀,提高干燥效率.Assures perfect alignm...
Involuntary terminations must be reported concurrent with the termination.偶然终止必须告知发生终止的事件.Make all cable terminations on switchboard and consumer side.使所有的电缆终端应连接在配电板和用电设备上.Single plated nickel barrier terminations has e...
刚到了树丛深处,枯枝折裂声又响起.Just as he reached the center of the thicket the dried twigs cracked again.你应该会在折裂处看到很多细长的纤维.You should be able to see a lot of thin fibers at the break . 2.韧性锥尖轻松进入牙缝,不折裂, 可代替牙签使用.The awl point can get ...