| 释义 |
Banka drill
基本例句
冲积层勘探钻,班克式人力勘探钻机
It is suggested that heavy sand measure is the effective method in searching the tin placer and that the shallow shaft and theBanka drillof SZ-130-Aare the suitable means for exploration of tin placer.指出重砂测量是有效的找矿方法,浅井探和SZ-130-A型砂钻是勘探砂矿的适用手段。 |