So high as heaved the tumid hills, so low Down sunk a hollow bottom broad and deep, Capacious bed of waters.
高耸的山峰升得这高，低洼的湖底沉得这低，阔而广，好河床——。
They looked and saw a little hollow in the grass, with a grassy bottom, warm and dry.
他们看见草中有个小坑，坑底长满温暖而干燥的草。
The valve at the bottom of auger can prevent drilling bits entering hollow pipe during operation. When drilling pipe is taken out and concrete grout is injected, the valve will be opened.
螺旋钻头底部阀门防止钻进过程中钻屑进入到空心的混凝土管中，当钻杆提出同时混凝土浆注入时，钻杆底部的阀门将被打开。
The shell is arranged around the hollow-fiber membrane or capillary membrane and the aeration device is arranged at the bottom of the shell.
外壳设在中空纤维膜或毛细管膜周围，爆气装置位于外壳的底 部。
The invention has the characteristics that the fabricated concrete overlapped hollow floor system comprises the prefabricated concrete bottom plate 1 with the steel ribs 2.
本发明的特征在于：所制成的混凝土叠合空心楼盖内部含有带钢骨肋2预制混凝土底板1。
The invention has the characteristics that the fabricated concrete overlapped hollow floor system comprises the prefabricated concrete bottom plate 1 with the steel ribs 2.
本发明的特征在于：所制成的混凝土叠合空心楼盖内部含有带钢骨肋2预制混凝土底板1。
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