natural gravel 中文意思是什麼
natural gravel
解釋
天然粗砂-
The cushion layer for the dam is constructed with the material prepared mainly with natural sandy gravel and mixed with proper amount of pebble and coarse sand
大壩墊層料採用以天然砂礫料為主、摻入小石和粗砂以調整級配的方式生產。 -
Small house full of green vine, small yard enclosed with fence, deep and serene gravel path, there is also fabulous chestnut trees … … mountains are grand, grass is green, spirit is the same as before, yimeng natural conditions and social customs is still deep, which make people lost in reverie
爬滿青藤的小屋，籬笆圍起的小院，斑駁幽深的石子小路，還有那掛滿傳說的老栗樹. . . . . .山巍巍，草青青， 「紅嫂」精神依舊在，沂蒙風情依舊濃，怎不令人魂牽夢饒。 -
In order to know the characteristics of the material, analysis on the particle gradation and the related tests on seepage and seepage deformation are made, with which the problems related to the cushion layer material mainly composed of the natural sandy gravel are solved, and the construction demand is met as well, which can provide a reference for the other similar project
為掌握其特性，進行了顆粒級配分析、滲透和滲透變形等項試驗，研究解決了以天然砂礫料為主的墊層料的水力學指標問題，滿足了工程需要，可為類似工程應用提供參考。 -
Hokutolite is a natural substance produced in the peitou creek about 90 meters downstream from the hot spring. as water from the spring flows into the stream it cools, and after a certain distance, when the temperature drops to around 80, the mineral - saturated water forms a crystalline deposit on the gravel bed of the stream
北投石產于北投溪源頭下九十公尺處，當泉水與溪水混合流過一定距離后，在八十度左右的環境下，呈飽和狀態的礦物質就沈澱在河床礫石表面，形成結晶。
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