| 释义 |
micromanipulation|ˌmaɪkrəʊmənɪpjuːˈleɪʃən|
[f. micro- 2 a + manipulation.]
The performance of extremely delicate operations (such as the isolation of a single yeast cell from a culture) under the microscope, usu. with the aid of a micromanipulator; an operation so performed.
1921Science 28 Oct. 411/2 (heading) A simple apparatus for micro-manipulation under the highest magnifications of the microscope. 1931Chem. Abstr. XXV. 1409 (heading) Micromanipulations on latex in dark fields. 1949New Biol. VII. 72 Although the chromosomes of most cells are very small objects,..in a few favourable cases it has been possible to study their physical properties by micromanipulation. 1971Nature 2 July 33/1 The micro⁓manipulation of chromosomes of living human cells in vitro is a potential means of obtaining transplantable genetic material.
So ˌmicromaˈnipulator, an instrument which is used in conjunction with an optical microscope to perform micromanipulations and which allows a microneedle, micropipette, etc., to be moved with great control through the field of view.
1921Science 28 Oct. 413/1 There are two models of the micro-manipulator, a simple and a more elaborate form. 1949A. G. Sanders in H. W. Florey et al. Antibiotics II. xvi. 678 Spores from a conidium can be picked off singly with the point of a needle. Some people can do this with the needle held in the hand, others prefer to use a micro⁓manipulator. 1968Sci. Jrnl. Nov. 18 (caption) Integrated circuit chip is shown above being placed in its case with aid of a micromanipulator. 1972Nature 4 Feb. 263 Zeiss micromanipulators were used to position micropipettes. |