And the 'trees,' pictured by a Nasa probe, are actually trails dislodged sand.
而这些被美国宇航局拍摄到的‘森林’实际上是风化的沙石。
The invention relates to resin sand specially used for probe cores and a high-efficient structural sublance dual probe made of the resin sand.
本发明涉及一种探头芯体专用树脂沙及用其制作的高效能结构副枪复合探头。
The invention relates to resin sand specially used for probe cores and a high-efficient structural sublance dual probe made of the resin sand.
本发明涉及一种探头芯体专用树脂沙及用其制作的高效能结构副枪复合探头。
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