There such a violent wind was blowing that she was almost blinded with dust, and was obliged to throw herself upon the ground, and feel about after the precious herb.
猛烈的风挟着土刮得她几乎睁不开眼，她只好伏在地上，用触感找那珍贵的四叶草。
The failure cause of the seal structure of the dust blowing device of an ethylene boiler was analyzed, the retrofit of the seal structure and the retrofit result were presented.
分析了乙烯锅炉吹灰器密封失效的原因，并介绍了对吹灰器密封结构的改造及改造后的密封效果。
The failure cause of the seal structure of the dust blowing device of an ethylene boiler was analyzed, the retrofit of the seal structure and the retrofit result were presented.
分析了乙烯锅炉吹灰器密封失效的原因，并介绍了对吹灰器密封结构的改造及改造后的密封效果。
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