"I need to spread fertilizer on the grass in the front yard," Ruth replied, "Then I need to check the wound on my dog's paw. I'm afraid it might fester if I don't get medicine for it."
“我要给前院的草地施肥，”鲁思回答，“然后要检查一下小狗爪子的伤口，我担心如果不给它上点药，伤口会化脓的。”
"I need to spread fertilizer on the grass in the front yard," Ruth replied, "Then I need to check the wound on my dog's paw." I'm afraid it might fester if I don't get medicine for it.
“我要给前院的草地施肥，”鲁思回答，“然后要检查一下小狗爪子的伤口，我担心如果不给它上点药，伤口会化脓的。”
The seal is provided by the combination of a peripheral groove in an outer surface of the check valve and a helically wound core in the groove.
通过组合所述止回阀的一外表面中的一周边槽与所述槽中的一螺旋缠绕芯来提供所述封垫。
The seal is provided by the combination of a peripheral groove in an outer surface of the check valve and a helically wound core in the groove.
通过组合所述止回阀的一外表面中的一周边槽与所述槽中的一螺旋缠绕芯来提供所述封垫。
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