The disposal and utilization of solid waste of coal gangue is one of the main problems in coal mining in China. Injecting coal gangue into goaf in the form of slurry can effectively solve the problems of ground stacking and environmental pollution preven
The face 62 comprises a protrusion 66 which may have a closed shape such as a circle over the surface of the face 62. The protrusion 66 defines the sealing perimeter of the face seal 61 with respect to a valve seat 21. Under static conditions, the effective area of the face 62 is giv...
Furthermore, pre-barrier deposition cleaning of sub-micron features and also the etch stop layer deposition processes can be effectively and economically carried out in multi-wafer stack reactors and such reactors may also be combined with the cluster tool. Also, in addition to copper, the ...
向舷外outer appearance 外观outer ring 外环outfitting n. 舾装output n. 输出overload v. 过载owner n. 船东owners representat ive船东代表oxide n. 氧化皮paint n. 油漆pain-taking a.艰巨的painting n. 涂装painting n. 涂装,油漆工艺palletizing management 托盘管理parallel n. 并联v. 并车parallel of ...
. Similarly, Singapore falls at the very bottom of the list—191 out of 191 countries and regions—when evaluated for overall risk of humanitarian crisis and disasters. Singapore also routinely tops the lists of safest places to live (Mousavizadeh et al.2016; The Economist Intelligence Unit2017...
(99) which is positioned parallel to the path of the boxes and has a profile in the form of a segment of a circle, with the centre of curvature on the said oscillating axes of the combs, and which is fixed on a parallel slide (96) which in turn receives the necessary reciprocating ...
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The LOP algorithm is a local algorithm proposed by Lawson, which is used to judge whether the points outside the Delaunay triangulation are within its circumscribed circle [21]. It is judged according to the principle that the sum of opposite angles of cyclic quadrilateral is 180°. There are...
The members of the resulting image series were then binarized with thresholding using the Otsu method [21] to find out the exact pixel position of the oil front in time. The proper pixel size calibration made it possible to infer the time dependence of the real velocity in mm/s units. ...