And a chair - straddle it backwards or sit in it sideways to remove each thigh-high stocking with pointed foot in the air.
还有一把椅子——两腿向后叉开在上面或者是侧坐在上面来移动每只长筒袜，同时将另一只脚指向空中。
The pollution source of amorphous dust resulted from open-air coal stocking yard is specialized with large area, which is difficult to control.
本文通过采用在储煤场周围设置防风抑尘墙，降低储煤场内风速，从而实现有效控制储煤场无组织扬尘污染。
应用推荐