-
Semi-closed guard protection, safe and reliable.
半封闭防护，安全可靠。
youdao
-
The mineralization system was a semi-closed state in the main metallogenic stage.
在主要成矿阶段，体系处于一种半封闭状态。
youdao
-
The mineralization system was a semi-closed state in the main metallogenic stage.
在主要成矿阶段，体系处于一种半封闭状态。
youdao