开关控制语句
switch control statement
开始语句
BEGIN statement
开锁语句
unlock statement
可执行数组语句
executable array statement
可执行语句
executable statement
可执行语句标号
executable statement label
可执行源语句
executable source statement
控制输入输出语句
manipulative I/O statement
控制语句
control statement; statement of control
控制转移语句
transfer-of-control statement
块开始语句
block initial statement
净化空气总管
clean air manifold
净空
headroom
clear space
净空高度
head room; head-room clearance; overhead clearance
净空间
clear space
静止空气粘滞性
viscosity of stationary air
绝对空间
absolute space
绝对真空
absolute vacuum
军事航空管制
military air-traffic control
卡尔真空烘箱
carr oven