光子准直
参考答案:
光子准直:依靠两个光子特殊方向和符合电路来实现准直的方法。
Although he is very young, he is much more experienced than others __ working ability.
A.in praise of
B.in terms of
C.in search of
D.in need of
编制工艺标准卡片,二氧化碳焊接电流参数范围控制在()偏差。
A、3%
B、10%
C、15%
D、20%