常用词语结构有：

an excess of ... 过量的…，…过剩

an excessive amount/quantity of ... 过量的…

(be)in excess of ... 超过…

excess 1．超过，过量，超额量； 2．过量的

excessive ( ly ) 过多的(地)，过分的(地)，过度的(地)

exceed ... 超过…

too + adj. / adv. (for...) (对…来说)太…，过于…

too + adj. / adv. (+ for + NP) + to V 太…以致(…)不能…

It there is an excess of oxygen the weld will be oxidized ．

如果氧气过多，焊缝金属可能会被氧化。

In order to be certain of dissolving 10 g of magnesium an excess of hydrochloric acid it used．

为了确保能溶解 10 克镁，可用过量的盐酸。

When methane is burned in (an) excess (of) oxygen carbon dioxide and water are formed．

使甲烷在过量的氧气中燃烧时，会形成二氧化碳和水。

The oxygen not taken up in a reaction is excess oxygen．

在反应中未被吸收的氧便是过剩氧。

The excess air reduces the temperature of combustion．

过剩空气会降低燃烧的温度。

If the rating of an electrical fuse is exceeded , the fuse will be melt．

如果(电流)超过了保险丝的额定值，保险丝便会熔化。

The boiler consumes an excessive / undue amount of fuel．

这台锅炉消耗的燃料量过大。

An excessive quantity of vitamin A is toxic．

过量的维生素 A 是有毒的。

An excessive electric current passed through an ammeter destroys the instrument．

通过安培计的电流若过大，会损坏安培计。

The temperature in the combustion chamber was in excess of / exceeded 2,000 C . degrees．

燃烧室中的温度超过了 2 000℃。

An insufficient supply of air will prevent complete combustion , but any air in excess of the minimum merely reduces the temperature of combustion．

空气供应不足会妨碍完全燃烧，但超过最低限度的任何空气只会降低燃烧的温度。

Too much air enters the furnace．

进入炉内的空气过多。

The temperature was excessive / excessively high / too high．

这温度过高。

Too large a current must not be used．

不得使用过大的电流。

This unit is much too large for expressing the quantity．

这个单位对于表示这个量实在太大了。

Such a current would be too strong for the coil of a galvanometer．

这种电流对电流计的线圈来说太强。

The metal was too hard to machine / to be machined．

这种金属太硬，无法(用机床)加工。

The temperature was too high for the boiler to withstand．

这温度太高，以致锅炉无法承受。