In this task, you need to Translate Czech text to English.

Q: Deriváty kyseliny fenyloctové obecného vzorce I, kde substituenty a index mají následující význam: X je kyslík nebo síra, R.sup.1.n. znamená atom vodíku a C.sub.1.n.-C.sub.4.n.-alkyl, R.sup.2.n. znamená kyano, nitro, trifluormethyl, halogen, C.sub.1.n.-C.sub.4.n.-alkyl a C.sub.1.n.-C.sub.4.n.-alkoxy, m znamená 0, 1 nebo 2, přičemž zbytky R.sup.2.n. mohou být stejné nebo rozdílné, jestliže m znamená 2, R.sup.3.n. znamená atom vodíku, kyano, nitro, hydroxy, amino, atom halogenu, C.sub.1.n.-C.sub.4.n.-alkyl, C.sub.1.n.-C.sub.4.n.-halogenalkyl, C.sub.1.n.-C.sub.4.n.-alkoxy, C.sub.1.n.-C.sub.4.n.-halogenalkoxy, C.sub.1.n.-C.sub.4.n.-alkylthio, C.sub.1.n.-C.sub.4.n.-alkylamino nebo di-C.sub.1.n.-C.sub.4.n.-alkylamino, R.sup.4.n. má význam uvedený v popisu a jejich sole, způsob jejich výroby a meziprodukty pro jejich výrobu a jejich použití.ŕ

A: Phenylacetic acid derivatives of the general formula (I) wherein the substituents and the index have the following meanings: X is oxygen or sulfur; is hydrogen and C.sub.1-C.sub.4-alkyl, R.sup.2. is cyano, nitro, trifluoromethyl, halogen, C.sub.1-C.sub.4-alkyl and C.sub.1-C.sub.4 -alkoxy; is 0, 1 or 2, wherein the radicals R.sup.2 are n. they may be the same or different when m is 2, R is 3. is hydrogen, cyano, nitro, hydroxy, amino, halogen, C.sub.1-C.sub.4-alkyl, C.sub.1. n-haloalkyl, C.sub.1-C.sub.4, -alkoxy, C.sub.1-C.sub.4-haloalkoxy, C.sub.1 C.alpha.-alkylthio, C.sub.1-C.sub.4-alkylamino or di-C.sub.1. 4.n-alkylamino; and the salts thereof, the process for their preparation and the intermediates for their preparation and their use
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Q: dic  ventil (12) sest v  ze t°  navz jem koncentricky upraven²ch t snic ch sedel (15, 16, 24), jako  i z ventilov ho t lesa (10), spolup sob c ho s t snic mi sedly (15, 16, 24), z nich  prvn  t snic  sedlo (15) je vytvo°eno v z kladn m t lese (5) ° dic ho ventilu  (12) a druh  t snic  sedlo (16) ve ventilov m p stu (9), zat mco t°et  t snic  sedlo (24) je vytvo°eno na obj mce (32), spolup sob c  s elektromagnetem (20).   dic  ventil (12) je opat°en alespo  jednou vyrovn vac  sou  st  (36) pneumatick ho tlaku mezi pracovn  a podtlakovou komorou (3, 4) ve f zi sni ov n  tlaku ve sk° ni (1) posilova e b hem zp tn ho pohybu t°et ho t snic ho sedla (24) od ventilov ho t lesa (10).\

A: The present invention is characterized in that a control valve (12) consists of three sealing seats (15, 16, 24) being concentrically arranged to each other, as well as a valve body (10) interacting with the sealing seats (15, 16, 24). The first sealing seat (15) is performed within a fundamental body (5) of the control valve (12) and the second sealing seat (16) is disposed in a valve piston (9), while the third sealing seat (24) is arranged on a sleeve (32) interacting with an electromagnet (20). The control valve (12) is provided with at least one part (36) serving for equalizing air pressure between a working and vacuum chambers (3, 4) in a pressure reducing phase within a brake booster (1) during backward movement of the third sealing seat (24) from the valve body (10).
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Q: Zámek pro teleskopické systémy, zejména kol, je uložený na vnitřní trubce (1), která je umístěna ve vnější trubce (2), a je ovládaný dálkově pomocí lanka (5). Ve vnitřní trubce (1) je po stranách vyvrtána nejméně jedna dvojice otvorů (3) pro zaskočení pohyblivých západek (4), které jsou uspořádány na nosném díle (8), umístěném ve vnější trubce (2). K jedné z těchto západek (4) je přiděláno ovládací lanko (5) spojené s ovládáním (9) západek (4), mezi západkami (4) je umístěna pružina (6) pro fixaci západek (4) a ve vnitřní trubce (1) je rovněž umístěn vzduchový ventil (7) pro tlakování vzduchem.

A:
The lock for telescopic systems, in particular wheels, is mounted on the inner tube (1), which is located in the outer tube (2), and is remotely controlled by a cable (5). At least one pair of apertures (3) are drilled in the inner tube (1) to engage the movable latches (4) which are arranged on the support (8) located in the outer tube (2). To one of these latches (4) a control cable (5) is coupled to the actuation (9) of the latches (4), a spring (6) is provided between the latches (4) to fix the latches (4) and the inner tube (1) an air valve (7) for pressurizing with air is also provided.
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