Spb
abbr. 急速先锋（Speed Pioneer Board）；软体套件建置程式（Software Package Builder）；信令处理板（Signaling Process Board）
🗣️ 情景例句
No, …is not in right now. May I take a message?
不， ……现在不在这儿。 我能帮你捎个口信吗？
This is your last chance. I believe you can make it.
这时你最后的机会，我相信你会成功的。
and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.
我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。