1) digging large area hole
开凿大面积梯间洞口
2) orifice area
开口面积
1.
The testing of prosthetic valve orifice area using image processing method;
用图像处理方法检测人工心瓣开口面积
3) intake port time-area
进气口开启时间-面积
4) open area ratio
开口面积比
1.
The method of improving the open area ratio and reducing the noise of MCP from enlarging the input end of the channel is presented.
提出对微通道板输入表面采用扩口技术提高微通道板的开口面积比,从而降低微通道板噪声的方法。
5) large-scale reclamation
大面积开荒
6) large area mining
大面积开采
补充资料：开凿
kāizáo
[cut (a canal,tunnel,etc.)] 挖掘河道、隧道等
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