The phrase "alterations must be" is correct and usable in written English.
It can be used when indicating that changes or modifications are required or necessary in a particular context.
Example: "Before the final approval, alterations must be made to the design to meet the client's specifications."
Alternatives: "changes are required" or "modifications need to be".
But lighter auto parts are usually more expensive, because they need to be made from aluminum instead of steel, while engine design alterations must be made with great care to avoid reducing vehicles' towing capacity.
The bridge has Grade II status which means any alterations must be agreed with Wokingham Borough Council as the planning authority.
Specifically, newly observed alterations must be analyzed in both the new isolate as well as the reference genome to discard the possibility of errors in published sequences.
The second is to determine what type of alterations must be done.
If the results are not satisfactory, alterations must be made to the settings and possibly the mask and the ventilator, and the effects of these checked again.
Of course, care must be taken to consider that contrast adjustment means changing the height scale in AFM topographs and such alterations must be reliably tracked to maintain the scientific meaning of the image.
Any introduction of a new penile practice (male circumcision as an HIV prevention technology) will undoubtedly alter the culture of current practices in PNG and this alteration must be documented and assessed in terms of maintaining cultural integrity including sensitivity to customary practices and the creation of men and in its impact on gender and sexual relationships.
In order to confirm the design and achieve a satisfactory fit, a number of repeated cycles of sample preparation, trial fitting and pattern alteration must be conducted.
More commonly, the effect of dietary alteration must be deduced from the results of mechanistic studies.
Since chemical changes such as those arising from mutations can alter the dynamical states and these alterations, if significant, must be distinctly sensed by the residues in different regions of the protein [32],[33], we next analyzed the differential effects of the mutations on the internal dynamics of the protein [Figure 3].
Students specify all their fields on a form provided for this purpose at the beginning of their second year of study; this proposal, and any subsequent alteration of it, must be approved by the Director of Graduate Studies.
