Arc welding with covered electrode
[机] 包覆电弧熔接
🧩 词语组成解析
arc
[ɑ:k]
n. 综合症状;弧（度）;天穹;电弧，弧光。;
vi. 形成拱状物;循弧线行进;
abbr. American Red Cross. 美国红十字会;
a. 焊的\\n[机] 熔接, 焊接, 锻接
with
[wɪð]
prep. 和，跟;随着;关于;和…一致;
covered
[[kʌvəd]]
a. 隐蔽着的, 掩藏着的, 有屋顶的\\n[建] 涂抹了的, 覆盖了的, 掩盖了的
🗣️ 情景例句
What's this for?
为什么要送我花？
David must figure on at least seventy strong men for support.
戴维至少须把七十个壮汉的协助计算进去。
Then see which plants grow higher, measure them with a ruler and write down your results.
过后看看哪种西红柿长得比较高，用尺子量量并记录下你的实验结果。