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in metal lid/preform assembly, small spot welds, generally located in the corners, that are used to attach the preform to the lid. [SEMI G53-92]
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Synthase definition
An enzyme that catalyzes a reaction in which a particular molecule is synthesized, not necessarily by formation of a bond between two molecules (contrast synthetase).
Swain-Scott equation definition
The linear free-energy relation of the formlg(k/k0) = snapplied to the variation of reactivity of a given electrophilic substrate towards a series of nucleophilic reagents. n is characteristic of the reagent (i.e. a measure of its nucleophilicity)...
T3 definition
in the message protocol, the reply timeout. NOTE-A timeout detects communications failures. T3 is a limit on the length of time that the message protocol will wait after the last block of a primary message has been sent and before the arrival of...
-symbol ("eta") definition
See hapto.
terpenoids definition
Natural products and related compounds formally derived from isoprene units (see isoprenoids). They contain oxygen in various functional groups. This class is subdivided according to the number of carbon atoms in the same manner as are terpenes. The...
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