A number of innovative developments (has, have) been made in the multi-component injection molding...
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Transcript of A number of innovative developments (has, have) been made in the multi-component injection molding...
![Page 1: A number of innovative developments (has, have) been made in the multi-component injection molding process in recent years.](https://reader035.fdocuments.us/reader035/viewer/2022062308/56649e2e5503460f94b1ef68/html5/thumbnails/1.jpg)
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A number of innovative developments (has, have) been made in the multi-component injection molding process in recent years.
![Page 3: A number of innovative developments (has, have) been made in the multi-component injection molding process in recent years.](https://reader035.fdocuments.us/reader035/viewer/2022062308/56649e2e5503460f94b1ef68/html5/thumbnails/3.jpg)
The number of takes singular verb while A number of takes a plural verb.
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A gas channel design 【 that (guides, guide) the gas flow to the desired locations 】 (is, are) one of the key factors that determine a successful application.
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The delay time along with gas injection points (is, are) important in producing injection-molded parts of quality.
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Expressions such as as well as, in addition to, along with, accompanied by and with should not confuse the reader into thinking that the sentence has a compound subject and, therefore, should have a plural verb.
The verb in this sentence should be singular since the subject, The delay time, is singular in form.
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Neither the processing parameters nor the amount of polymer melt injection solely (determine, determines) a successful gas channel design.
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The verb in the sentence is singular in form since the amount of polymer injection, not the processing parameters, is the closest to the verb.
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【 To select the number and locations of gas injection points 】 and 【 to determine the amount of polymer melt injection 】 (is, are) essential to a successful application.
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A compound subject, To select the number and locations of gas injection points and to determine the amount of polymer melt injection, takes a plural verb.
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Ergonomics (aim, aims) to integrate worker comfort and productivity.
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(Original) Each of the factors contributes to a successful design.
(Revised) Each factor contributes to a successful design.
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(Revised) The simulation 【 in which the polymer melt flow occurs in thin cavities 】 provides accurate predictions.
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Writers should be careful not to choose the wrong verb form by becoming distracted by words or phrases between the subject and the verb.
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【 Establishing a general model or empirical formula in addition to describing the thickness variation of the skin melt that exists between the gas/melt interference and the cavity wall 】 appears to be necessary for further development.
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The number of gas injection points is important in producing quality injection-modeled parts.
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The majority of factors heavily influence product performance.
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The verb should be plural in this sentence since the noun refers to individual factors.
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【 Accurately determining the interface shape of a bubble nose 】 and 【 properly selecting the film thickness 】 are of primary concern.