The sailing ships were superseded by the steamships.

帆已被汽所代。

The enemy may have recourse to steel instead of poison.

敌人可能用凶器来代放毒。

By and by electricity will take the place of coal.

不久以后, 电将代煤。

The use of machinery has superseded manual labour.

机器的使用已经代了手工劳动。

Should radical vulvectomy be replaced by wide local excision for vulval cancers?

根治性外阴切除术应该被扩大局部切除术代？

Two series of tolan-type liquid crystals containing terminal cyano group were synthesized.

设计并合成了类新型末端氰基代含氟二苯乙炔类液晶。

In most offices, the typewriter has now been supplanted by the computer.

当今许多办公室里, 打字机已被电脑代。

It leaves no trace after fire extinguishing.It replaces for alkylogen annihilator.

灭火后不留痕迹，是代卤代烷灭火器的替代品。

Custom Built Dual Pass Reverse Osmosis System - Replaced existing automatic deionizer for plating operation.

定的双通道反渗透系统——代现有的自动电镀脱离子剂。

In this reaction,besides substitution products thiophenol etc,the reduction product benzene is formed.

反应中，除生成笨硫酚等代产物外，还生成还原产物苯。

EASTMAN Color Internegative film, 5245. False sensitized. Replaced 5243. Discontinued in 1956.

伊士曼彩色电影中间片5245代了5243。它也于1956年停产。

Aryl substituted polyacetylenes and their derivatives exhibit a lot of novel optical, electric, magnetic properties.

芳基代聚炔及其衍生物呈现出光电磁等许多新颖的性能。

He bears a grudge against me because I took his place in the office.

他对我怀恨心,因为我代了他办公室里的位置。

Engineers are still trying to come up with a commercially viable replacement for internal-combustion engines.

工程师设法造商业上切实可行的发动机来代内燃机。

The R2SO were later replaced by the Blue two-suiter overcalls which is more descriptive and effective.

R2SO后来被更详尽和有效的蓝梅双套盖叫法代了.

The tacticity of polymers is mainly influenced by the polarity of substituent group of vinyl monomer.

作者认为影响聚合物等规度的因素主要是代基的极性效应。

No sooner do you buy a computer than they bring out a new one which supersedes it.

你买电脑后不久他们就会推出新产品代它。

Preoxygenation replaces the primarily nitrogenous mixture of ambient air, which constitutes the patient's functional residual capacity, with oxygen.

这样可以用氧气代之前被氮气占据的肺泡。

Where good natural protection is not available a fixed hanger or ringbolt should replace the piton.

若该处并无良好的天然支点，则应以固定耳片或环形锚栓代该岩钉。

The chromogenic responding ability increases as the substituent changes from phenyl to naphthyl or anthryl.

实验结果表明，偶氮基团的引入改善了8-羟基喹啉的生色能力，并且乙腈溶液中随着代基由苯基变为萘基和蒽基时，化合物的吸收光谱发生红移。