… : (i) Separate isomers not less than 90 % pure (*). (ii) Mixtures of stereoisomers, containing not less than 90 % (*) of stereoisomers of a specific hydrocarbon. (iii) Mixtures of other isomers containing not less than 90 % …
… : (i) Separate isomers not less than 90 % pure (*). (ii) Mixtures of stereoisomers, containing not less than 90 % (*) of stereoisomers of a specific hydrocarbon. (iii) Mixtures of other isomers containing not less than 90 % …
… prevent leakage of the active substance (17ß-estradiol); (ii) a small reservoir from which 17ß-estradiol is released … absorption through the skin into the circulatory system; (iii) a control membrane (permeable to the active substance) …
… signals on the magnetic tape and reads those signals; (ii) a sound head which writes the audio signals on the magnetic tape and reads those signals; (iii) an erasing head which erases the prerecorded signals at …
… an electric fan and a filter to purify the air; (ii) a perforated sheet located below the hood to serve as a work surface; (iii) a tank beneath the perforated sheet to collect any …
… to prevent leakage of the active substance (nicotine); (ii) a small reservoir from which nicotine is released by … absorption through the skin into the circulatory system; (iii) a control membrane (permeable to the active ingredient) …
… steel round-head stud with a cotter-pin hole in the shank; (ii) an unhardened vulcanised rubber sleeve, and if necessary … one or two washers, which fit over the stud shank; (iii) a steel cam with two semi-helicoidal paths terminating …
… a magazine for a plain tape or strip of metal or plastics; (ii) an embossing device operated by a lever and consisting … of a disc bearing letters, figures and symbols; and (iii) a steel blade for cutting off the printed tape or …
… covered on both sides with bitumen or similar material; (ii) on the underside, an element called a "vapour shield" or … covered on both sides with bitumen or similar material; (iii) in the centre, between the two above elements, an …
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