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- hill drop drill 穴播机
- Study on the Hill Formation of Paddy Horizontal Disk Hill- Drop Drill with Intermittent Driving 间歇传动水平圆盘式水稻穴播机成穴性研究
- UBD with CT can reduce the f ormation and pay zone damage,enhance the penetration rate,improve safe operation with high efficiency and drop drilling costs. 欠平衡连续油管钻井，可减少钻井过程中对地层和产层的损害，可提高机械钻速，安全高效率钻井，降低钻井成本。
- As state-owned of small coalpit of the ageing of big mine and villages and towns shut thoroughly, once brilliant old economy adding up to hill dropped when new old century is alternant trough. 随着国有大矿的老化和乡镇小煤窑的彻底关闭,曾经辉煌了多年的合山经济在新旧世纪交替之际一下跌入了低谷。
- It was a long trudge up the hill. 那段上山的路很难走。
- The stately mansion crested the hill. 庄严的大厦位于山顶。
- The path leads to a hill bare of vegetation. 这条小道通向一座没有草木的小山。
- The farm sits on the side of the hill. 农场位于山坡上。
- The drilling troops mustered on the hill. 演习部队在小山上集合起来了。
- The drill sergeant took the men on a ten-mile march and they were all ready to drop by the time they got back to barracks. 那个教官带领士兵们作了10英里的行军，结果他们回到军营时全都累得快要趴下了。
- That overloaded truck jibbed at the steep hill. 那辆超载的卡车爬不上陡坡。
- At six we were fallen in for drill. 六点钟我们站好队准备操练。
- Hill and woods diversify the landscape. 山陵和树林点缀景色。
- He said he would drop her like a hot potato. 他说他会把她像烫手的东西一样迫不及待地扔掉。
- The rain is leaking in large drop through the roof. 雨正大滴大滴地从屋顶漏下来。
- The tower on the hill brooded above the village. 小山上的塔楼俯视着那个村庄。
- Interest in the book began to drop off. 人们对这本书的兴趣开始减退了。
- They are digging through the hill to make a tunnel. 他们正在凿山建一条隧道。
- The sound of that drill jangles horribly on the nerves. 那台钻机的声音响极了，十分刺耳。
- A drop of blood slid down his leg. 他的腿上流着一点儿血。
