White pins are often covered with tin, and black ones with black paint.

白色的大头针一般是镀的，黑色的大头针则涂上了黑漆。

But not all of the copper is tinned, this one here is untinned because it's a sugar pan.

但并不是所有的铜具都是镀的，这里的这一个没有镀，是一个糖锅。

Untinned copper can be dangerous and acidic foods cooked in it can turn green and make you ill or even die.

未镀的铜具很危险，用煮的酸性食物会变绿，你生病甚至死亡。

An important part of the girls cleaning the copper is to make sure that the inside is still tinned.

仆们清洁这些铜具的一个重要原是确保铜具内部的镀不掉。

ICC does buy US made steel but says imports bridge a gap in supply for high-grade tinplated steel needed for blemish-free lithographic printing.

独立金属罐头公司确实购买了美国产生的钢铁，但同时也表示，进口可以弥补高档镀钢的供应缺口，而高档镀钢正是无瑕疵平版印刷所需要的原材料。

The odour which now filled the refectory was scarcely more appetising than that which had regaled our nostrils at breakfast: the dinner was served in two huge tin-plated vessels, whence rose a strong steam redolent of rancid fat.

现在弥漫在食堂的气味几乎不比早餐时我们鼻孔里的气味更令人开胃：晚餐是在两个巨大的镀容器中盛放的，从那里升起一股强烈的蒸汽，散发出腐臭的脂肪气味。