very useful   (非常に便利)

However, it is not very useful for making spirals.

They are very useful and found throughout the world.

Ultrasound imaging can be very useful in these cases.

more useful   (より有用)

Additional metrics, such as waist circumference, can be more useful.

As a hero he was caught in the Cold War and more useful than a free man.

Hence, this reaction is more useful for terminal alkynes than internal alkynes.

particularly useful   (特に有用)

He is particularly useful with his left foot.

Phosphonimines with the formula RP=NSiMe are particularly useful.

Neither of these advantages, however, proved particularly useful.

most useful   (一番便利)

Altogether a most useful man in the team."

It is most useful when the subject is greatly magnified e.g.

The oxides and sulfates are the most useful compounds of aluminium.

useful when   (役に立つとき)

His notes were useful when preparing his published works.

This is especially useful when using existing library code.

It is most useful when the subject is greatly magnified e.g.

useful information   (有用な情報)

Only 25% of the cards contained accurate or useful information.

Some are mutator operations, while others simply return useful information about the tree.

This is not to say that we cannot deduce useful information about the visual world from perception.

especially useful

This makes it especially useful for film-based projects.

This is especially useful when using existing library code.

This is especially useful when the requirements change rapidly.

useful tool   (便利な道具)

In literature and rhetoric, ambiguity can be a useful tool.

Leonard also said: "The Internet then becomes a useful tool.

Google figured it would be a useful tool to open up to web developers.

useful life   (耐用年数)

In rare occurrences the lamp explodes at the end of its useful life.

Further to this; it is the cost of the asset less any salvage value over its estimated useful life.

When buildings reach the end of their useful life, they are typically demolished and hauled to landfills.

not useful

Antibiotics are not useful against viruses.

Angles are not useful in a Euclidean line, as they can be only 0 or "".

However, in the inference stage, this dependence is not useful any more.

proved useful

These forts proved useful during Mughal-Maratha wars.

In Clancy's books, the "Red October" adventure proved useful to Ryan's career.

Napalm proved useful, burning away the vegetation hiding spider holes and usually killing their occupants.

useful load   (有用な負荷)

Equipment was also simplified and lightened to increase useful load, e.g.

The main goal was to create an agricultural aircraft with increased useful load.

It was also too heavy (2155 kg instead of 1715 kg) and had too small useful load.

useful because   (便利だから)

This is useful because B is largely immune to radiation damage.

This is useful because many more shells can land on the target with no warning.

This is useful because many people are lactose intolerant and avoid dairy products.

less useful   (あまり役に立たない)

Key value operation is less useful for the digitalized text.

Serum prolactin level is less useful for detecting focal seizures.

However, as the grid transitions to power surplus the ABT has become less useful.

other useful   (他の有用な)

These bodies form concentrated sources for many metals and other useful elements.

Also a calendar may, by identifying a day, provide other useful information about the day such as its season.

Members receive a diary each year listing the names and addresses of Fellows and Associates and containing other useful information.

extremely useful

Dynamic scope is extremely useful because it adds referential clarity and discipline to global variables.

These materials are of central importance to the production of aluminium and are themselves extremely useful.

CVD is extremely useful in the process of atomic layer deposition at depositing extremely thin layers of material.

prove useful   (有用であると証明する)

This can prove useful for crossing the worst of the bogs.

His knowledge of Russian was to prove useful in later years.

Cosolvents prove useful in synthetic applications as well as in formulation.

useful work   (有用な仕事)

During this time, the system was not performing useful work.

This is unresisted expansion and no useful work is done by it.

Monasticism is forbidden, and Baháʼís are taught to practice spirituality while engaging in useful work.

giving a useful

The aircraft has an empty weight of and a gross weight of , giving a useful load of .

provide useful   (有用な提供)

Open interest provide useful information that should be considered when entering an option position.

Inscriptions and summaries or comments by Hellenistic and Byzantine scholars can also provide useful clues.

These RFCs are advisory in nature, but may provide useful information despite defining neither a standard or BCP.

only useful   (役に立つだけ)

Blood levels are only useful more than six hours following the last dose.

(Of course this is not the only useful way to split a matrix into two matrices.)

If echolocation exists, it is likely only useful in the near field by the catfish.

potentially useful   (潜在的に有用)

This presents a potentially useful source of revenue for some farmers.

The aforementioned tunability of properties is potentially useful in optics and photonics.

The computer's ability to simulate physical systems makes it potentially useful in teaching science.

often useful   (しばしば役に立つ)

Regression is often useful.

It is often useful to imagine a Lyapunov function as the energy of the system.

While often useful, GDP only includes economic activity for which money is exchanged.