by steam

The machinery is driven by steam.

这些机器是由蒸汽推动的.

Analysis of the wellbore heat loss in development heavy oil reservoir by steam injection

注蒸汽开发稠油油藏中的井筒热损失分析

By physical modeling and numerical simulation, the characters of horizontal fracturing-assisted steam flooding technology and oil incremental mechanism is summarized, that is, using horizontal fracture to control the steam overlaying rate and delay the steam breakthrough time can be effectively enhance the vertical sweep efficiency.

通过物理模拟和数值模拟，总结出水平压裂辅助蒸汽驱技术特点和增油机理，即利用水平裂缝控制蒸汽超覆速度、推迟蒸汽突破时间，有效提高了纵向波及系数。

Steam condensate was produced by steam exchanging heat during oil refining.

蒸汽凝结水是在石油炼制生产过程中蒸汽经换热后凝结产生.

The maximum steam load produced by the bark was determined by the bark fixed combustion temperature and the capacity of attemperator system when the basic steam load was given.

在一定的基本蒸汽负荷下，燃树皮产汽负荷的上限值可根据流化床中树皮的稳定燃烧温度和减温系统的工作能力来确定。

Exploitation of energy from density difference by steam pressure difference method

蒸汽压差法浓差能开发

The air-cooled steam condenser ( ACC) condenses the turbine exhaust steam or the de-superheated steam from the turbine bypass by rejecting the heat to the atmosphere. A steam roller is used in making and repairing roads.

空冷凝汽器（ACC）通过向大气释放热量对汽机排汽或汽机旁路的减温过热蒸汽进行冷凝。蒸汽压路机用来修筑道路。

They were scalded by steam from the burst pipe.

他们被爆裂的管子里喷出的蒸汽烫伤了.

Activated carbon was prepared from tobacco stem by steam activation.

以烟秆为原料,经炭化后用水蒸气活化制备活性炭.

The behaviors of condensate was recorded by a high speed photography, the temperature of cooling water and steam was monitored by thermocouple, and the pressure of steam was monitored by a high precision pressure gauge.

用高速摄像记录冷凝过程中冷凝液的动态特性，用热电偶实时监测冷却水和蒸汽的温度，用高精度压力表监测蒸汽压力。

He experimented in chemistry, in ploughing by steam power.

他做化学实验, 实验用蒸汽耕田.

Nicotine can be extd. from tobacco waste by steam distn.

尼古丁可以用蒸气蒸馏的方法从烟草废料中萃取.

The piston moves by steam pressure.

活塞在蒸汽压力下运动.

Surface Modification by Steam Treatment in Vacuum Technique

真空水蒸汽表面改性处理技术

Steamships are larege non-military ships driven by steam power.

蒸汽轮船是用蒸汽驱动的 非 军用轮船.

Some railroads once run by steam are now electrified.

从前由蒸汽操纵的铁路现在电气化了.

Application of the technology to replacement of power by steam in blast furnace blowing system

高炉鼓风系统以汽代电技术应用

Analysis for the error caused by steam flow with labyrinth control valve

迷宫式流量调节阀计量蒸汽流量误差分析

The essential oil from wood was extracted by steam distillation.

采用水蒸气蒸馏法提取木粉中的精油；

Which was the first ship to be powered by steam?

什么轮船首先以蒸汽为动力？

He used to travel by steam.

他过去常乘轮船旅行.

Methods: The volatile oil was extracted from Fructus Aurantii by steam distillation.

方法: 采用水蒸气蒸馏法从枳壳中提取挥发油.

Trains in the past were powered by steam engine.

以前的火车都是由蒸汽机带动的.

A Model for Prediction of Fractured Heavy Oil Reservoir Performance by Steam Stimulation Process

裂缝性稠油油藏蒸汽吞吐动态预测模型稠油油藏储层动态测井评价方法

This machine is driven by steam.

这部机器是用水蒸气推进的.

The cylinder can be heated by steam, electric or oil.

滚筒具有蒸汽加热 、 电加热及油加热三种方式.

A new process for producing roofing asphalt by steam cracking and condensation

建筑沥青生产新工艺&渣油过热水蒸汽裂解缩合

METHODS: The essential oil was extracted by steam distillation.

方法：采用水蒸汽蒸馏法提取挥发油。

Feedstock selection for hydrogen manufacturing by steam reforming and technical progress in commercial application

水蒸气转化制氢原料的选择与工业应用技术的发展

Do you run the trains on oil or by steam?

你们开火车用油还是用蒸汽?