英语词汇“block section”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

21. Railways. Any of the sections of track into which a railway line is divided by a signalling system. Also more fully block section. Frequently, and earliest, as a modifier: cf. Compounds 1d.Each section is protected by signals in such a way that, generally speaking, only one train may occupy a block at any one time. Cf. blocking n.² 10.Recorded earliest in block system n. at Compounds 4.

1864 Realm 29 June 1 The only remedy for the danger is the adoption of what is technically called the ‘block system.’

1869 Cornhill Mag. Mar. 281 This system of an interval of space is technically called the ‘block’ system... To carry it into effect, a railway is divided into blocks or divisions, which may be of equal or unequal lengths, without affecting the principle.

1873 Rep. Select Comm. House of Lords Regulation of Railways Bill 55 in Parl. Papers (H.C. 148) XIV. 421 Our suburban traffic was so seriously delayed in the mornings between half-past eight and half-past ten when there is a great pressure for the City, that we were obliged to put in an intermediate block section.

1917 W. G. Raymond Elem. Railroad Engin. (ed. 3) x. 129 In the automatic block system the signal at the entrance of each block is power-operated, usually electric.

1963 G. M. Kichenside & A. R. Williams Brit. Railway Signalling v. 46 The signal controlling entry to the block section can only be cleared..when the block indicator for the section ahead is at ‘line clear’.

2003 B. Solomon Railroad Signaling v. 113/1 The limits of the block may need to be adjusted to accommodate a variety of special situations, such as the location of stations, highway crossings, bridges, and sharp curves.

单词	block section
释义	> as lemmas block section 21. Railways. Any of the sections of track into which a railway line is divided by a signalling system. Also more fully block section. Frequently, and earliest, as a modifier: cf. Compounds 1d.Each section is protected by signals in such a way that, generally speaking, only one train may occupy a block at any one time. Cf. blocking n.² 10.Recorded earliest in block system n. at Compounds 4. Π 1864 Realm 29 June 1 The only remedy for the danger is the adoption of what is technically called the ‘block system.’ 1869 Cornhill Mag. Mar. 281 This system of an interval of space is technically called the ‘block’ system... To carry it into effect, a railway is divided into blocks or divisions, which may be of equal or unequal lengths, without affecting the principle. 1873 Rep. Select Comm. House of Lords Regulation of Railways Bill 55 in Parl. Papers (H.C. 148) XIV. 421 Our suburban traffic was so seriously delayed in the mornings between half-past eight and half-past ten when there is a great pressure for the City, that we were obliged to put in an intermediate block section. 1917 W. G. Raymond Elem. Railroad Engin. (ed. 3) x. 129 In the automatic block system the signal at the entrance of each block is power-operated, usually electric. 1963 G. M. Kichenside & A. R. Williams Brit. Railway Signalling v. 46 The signal controlling entry to the block section can only be cleared..when the block indicator for the section ahead is at ‘line clear’. 2003 B. Solomon Railroad Signaling v. 113/1 The limits of the block may need to be adjusted to accommodate a variety of special situations, such as the location of stations, highway crossings, bridges, and sharp curves. extracted from blockn.¹ < as lemmas
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> as lemmas