The hyphen should be used. "Industry-based" the modifier (in l. adjective) for projects.


In most cases, use a hyphen between words or between abbreviations and words combined to form a unit modifier that precedes the word modified. This applies particularly to combinations in which one element is a present or past participle.

Minneapolis-St. Paul airport
thought-provoking argument
second-quarter sophomore
U.S.-flag ship
up-to-date information
(but information that is up to date)


Hyphenate compounds that include well- and ill- when they precede the noun. Do not hyphenate if the expression carries a modifier.

a well-known woman
(but a very well known woman)


Use a hyphen when confusion could exist between a modifier and the word it modifies.

a light (weight) green jacket/a light-green (color) jacket
a new book sale/a new-book sale


Use hyphens where two or more hyphenated compounds have a common basic element that is omitted in one or more of the terms.

three- or four-member committee
seaweed- and barnacle-covered ships (not seaweed and barnacle-covered ships)
a student-owned and -operated radio station


Do not use a hyphen in a two-word modifier if the first clement is a comparative or superlative.

upper division courses
better paid worker
best liked films
higher income bracket


Do not use a hyphen to form a temporary compound if the meaning is clear and readability is not aided by adding one. Refrain from forming hyphenated compounds when the words are used in normal sequence.

chemical dependency program
interior design certificate
health care institution
world affairs center


Do not hyphenate -ly phrases.

severely injured patients
unusually accurate predictions


Do not use a hyphen in a unit modifier containing a foreign phrase.

a priori knowledge
bona fide original


Do not use a hyphen in a unit modifier containing a letter or a numeral as its second clement.

grade A cultured buttermilk
section 2 beds of the prison

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NUMERICAL EXPRESSIONS

Use a hyphen between the elements of compound numbers from 21 to 99 (when they are spelled out).

Fifty-three percent of the students polled agreed.
March the first, nineteen hundred and seventy-nine


Use a hyphen in adjectival compounds with a numerical first element. Do not use a hyphen with numerical compounds used as nouns.

10-hour day
20th-century novel
The 31st precinct was the most liberal.


Use a hyphen with the symbols for chemical elements used in combination with figures. Do not use a hyphen with superior figures or when the element name is spelled out.

U-235
uranium 235
U 235
235U


Do not use a hyphen with spelled out fractions used as nouns. Hyphenate spelled out fractions used as adjectives.

three fourths of an inch
two-thirds majority