points and crossingsfunctionrailway technology is
Points and Crossings:
Function
Railway technology is based on an exclusive track for movement. For diverting trains from one track to another, some arrangements are needed. Points and crossings achieve this function.
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cytoplasmic reorganisationmeiosis is also associated with major reorganisation of the cytoplasm of mmcs and microspores microspore mother cell shows
formation embankmentthe formation is the earthen embankment on which the other components of the track rest for supporting the heavy loads the earth
sleepersthe sleeper is the part of the track on which the rails rest its functions are a to hold the rails to the correct gaugeb to transmit and
creepcreep of rails is the forward movement of rails in the direction of dominant traffic over a period of time creep is undesirable because it
points and crossingsfunctionrailway technology is based on an exclusive track for movement for diverting trains from one track to another some
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release of microspores up to the tetrad stage there is no cellulosic wall around the microspores as you will come to know in the next unit a unique
ovule the ovule also known as the megasporangium is the forerunner of the seed it consists of a central mound of tissue called the nucellus which is
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