1) core specimen
打孔取样试样
2) sampling aperturem
取样孔径
3) sampling aperture
取样孔
4) thief hole (=thief hatch)
取样口[孔]
5) bore-hole sampling
钻孔取样
1.
There are not detailed specifications and regulations about verifying and evaluating core sample in base bore-hole sampling,so it is necessary to discuss the applicability,verification index and quality evaluation about bore-hole core sample verification.
有关路面基层钻孔取样后芯样的检验和评定方法,在现行规范中没有具体的说明和规定,故有必要对钻孔芯样检验方法的适用性、检验指标及质量评定进行探讨,以供同行参考。
6) test sample;test specimen;specimen,dummy try-on,sample; specimen,test-piece,sample;assay,coupon,advance print,proof sample,proof impression
试样，样品，取样
补充资料：常用打孔工艺
常用的打孔方法有：钻头钻孔，电火花加工打孔，激光打孔等
1、钻头钻孔
适合打大孔，直径在2MM以上的孔，且钻头易断，产品废品率较高。
2、电火花加工
打孔在0.2mm以上，加速度很慢
3、激光打孔
可以打0.1以上的孔，速度较快，深度不超过4MM
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条