There are 40 specifications for YA series, of which the heavy-dutytype is used for the classification of large size materials, while the light-duty type is for the middle and small size materials.
本系列振动筛共有四十种规格，其中重型筛供大粒度物料分级、轻型筛供中小粒度物料分级。
2
If possible, wrap the casualty tightly in a coat, curtain or blanket (not the nylon or cellular type), rug or other heavy-duty fabric.
如果可以的话，用外套、窗帘、毛毯(不要尼龙或者网状的)、小地毯或者其他的重型织物紧紧地包裹住伤员。
3
Of course, this program is really just for testing and experiments — you wouldn't use it for heavy-duty interaction with the database any more than you'd type raw SQL into an Oracle database.