delivered by the fuel system to the engine cylinder,___ it is compressed, ignited, and burned.A. whenB. whereC. thatD. which 相关知识点: 试题来源: 解析 B 句子前段的核心结构是"...engine cylinder, ___ it is compressed...","engine cylinder"(气缸)是一个地点名词,需选择关系副词连接从句...
Fuel and fuel - Air - the start of the ignition of the oxygen mixture, how to modify or enhance the combustionBy an internal combustion engine of any form, using the nanosecond cycle high voltage pulse discharge and also relates the production of engine and energy engineering industry, the ...
原句结构为“We have seen how... engine cylinder, ___ it is compressed...”。空格后的从句描述的是发动机气缸内发生的过程,需要一个关系词引导定语从句,修饰表示地点的先行词“engine cylinder”。 - **A. when**:表时间关系,但上下文无明确时间关联,排除。 - **B. where**:关系副词,修饰表示地点的...
An engine consists of several chambers or “cylinders”, into each of which is injected a mixture of air and avgas. This mixture is caused to undergo combustion at the proper time by a spark, generated by the spark plugs. The properly timed explosion of the fuel air mixture in the cylind...
Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words. Task 1 表格 - - 范文 答题 One long-distance flight consumes fuel which a car uses in several years' time, but they cause the same amount of pollution. So...
The next step is to get the support of the authorities so that this new operational concept can be certified, and ultimately enable airlines to reduce their fuel burn and CO2 emissions. The Airbus pioneering fello’fly flight was welcomed upon its arrival in Montreal by the ...
Exhaust Smoke: Is It Normal?Before we go on to explain why thick white smoke from exhaust is a sign of trouble, you must first understand where exhaust fumes come from and what is normal. Inside your engine’s combustion chamber, a spark ignites the mixture of fuel and air, creating a ...
Boeing claim that the B787 Dreamliner uses 20-25% less fuel on a per passenger basis than the planes it replaces. This is one of the facts which Europe’s largest low-cost airline, Ryanair, uses to make claims about being Europe’s greenest airline, never mind that it has flown on ...
How Fuel Cells Work If you want to be technical about it, a fuel cell is an electrochemical energy conversion device. Discovered in the 1800s, a fuel cell converts the chemicals hydrogen and oxygen into water, and in the process it produces electricity. ...
If there is too much fuel mixed with the air, the engine "runs rich" and either will not run (it floods), runs very smoky, runs poorly (bogs down, stalls easily), or at the very least wastes fuel. Inside a Carburetor Chainsaw carburetor (photo 1). Even in the era ...