empty hole造句

Study on blasting mechanism and its engineering use of spiral cutting with big empty hole in rock under - excavation
岩石工程大空孔螺旋掏槽爆破机理研究及应用
One night a robber stole all the gold . when the miser came again , he found nothing but an empty hole
一天晚上，一个小偷挖走了所有的金块。守财奴再来查看时，发现除了一个空洞什么都没有了。
Hall coefficient depends on electronic concentration and the relative values of empty hole concentrations and their migration rate in the semiconductor
而霍耳系数取决于半导体材料中电子浓度和空穴浓度的相对大小及其迁移率之比。
There is empty holes inside catton fibre , the bacteria can grow inside , and the catton fibres were linked in between , their hydrophilicity 、 air - breath ability are not as good as bamboo fibre , especially in hot summer , it has very different sense to use bamboo fibre sanitation products compare with catton fibre sanitation products
棉纤维内部有空洞，是滋生细菌的温床，且棉纤维之间互相粘连，吸水性透气性大不如竹纤维，尤其是炎热的夏天，使用竹纤维卫生用品和棉纤维的感觉就有大不一样了！
It's difficult to find empty hole in a sentence. 用empty hole造句挺难的