Concave fillet weld
[化] 凹形角焊縫
?? 詞語組成解析
concave
['k?n'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
fillet
['filit]
n. 肉片，魚片;頭帶，帶狀物;[建]平緣，木摺;[紋章學] 筋鞘;
vt. 用帶縛或裝飾;把（魚、肉）切成片;
weld
[w?ld]
vt.& vi. 焊接;使緊密結合;
n. 焊接點;黃色植物染料;
??? 情景例句
Yes, we are.
是的 ，我們準備如此。
It's wonderful! It's terrific!
棒極了。
As the Commanding Officer explained later, one half of the station did not know what the other half was doing!
正如指揮官后來解釋的那樣，基地的這半邊不知道那半邊正在干什么！