垂直孔 meaning in Chinese
straight hole
Examples
- Fire safety equipment - operated safety systems - part 4 : curtain and door with vertical opening
消防系统.运行的安全系统.第4部分:带垂直孔的幕帘和门 - The extension drill rod which can be used for higher capacity drill , the drill hole can be extended to sezeral meetrs , when drilling the straight hole , the core lifter can help coring
选用加长钻杆于较大能力的钻机，可将钻孔延深至数米，钻垂直孔时，可采用取芯器配合取芯。 - For reducing cost and accelerating construction speed sparingly , at present in irrigation works construct in producing testing progressively and antiabrasion layer that popularize excavating method competent to split law in advance , flexible cushion layer etc . accumulative charge to vertical hole has been tested in three gorege project only
为了节省施工成本、加快施工进度，目前在水利工程施工生产中逐步试验并推广的保护层开挖方法有水平预裂法，柔性垫层法等。对于垂直孔水平聚能药包爆破用于生产试验仅在三峡进行过。 - By doing single fracture drainage experiments , this paper has successfully presented the logarithm function relationship between ratio of drainage discharge through upward and plumb drainage hole and the ratio of their equivalent diameters . the drainage effect will be the best when the included angle between drainage hole and fracture surface is 21 ~ 36
4 、通过单裂隙排水试验，建立了倾斜孔和垂直孔的排水量之比与其交界线的等效直径比之间的自然对数关系式，排水孔排水量基本随其与裂隙面的交角减小而增大；对单组裂隙排水的初步分析表明，排水孔与裂隙面的夹角在21 ~ 36范围内排水效果最佳。