English to Russian Tech/Engineering Aerospace / Aviation / Space standard

Добрый день!
Помогите, пожалуйста, перевести "in-line" в пункте "с" в следующем контексте:

5.3.3.6 Multiple Row Test Fixtures

In tests of passenger seats that are normally installed in repetitive rows in the aircraft, head and knee impact conditions are best evaluated through tests that use at least two rows of seats. These conditions are usually critical only in Test 2. This test allows direct measurements of the head and femur injury data.

a. The fixture shall be capable of setting the aircraft longitudinal axis at a yaw angle of -10 degrees and +10 degrees. The fixture should also allow adjustment of the seat pitch.

b. To allow direct measurement of head acceleration for head injury assessment for a seat installation where the head of the occupant is within striking distance of structure, a representative impact surface may be attached to the test fixture in front of the front row seat at the orientation and distance from the seat representing the aircraft installation.

c. Seats designed for seat tracks that are not in-line and parallel (track-break seats) typically require special floor attachment fittings. The installation of the seat tracks on the test fixture for these seats is unique, and depends on the intended seat location in the airplane. The test setup must represent the seat track orientation on the airplane (that is, angles, offsets, forward/aft distance, and so forth) of seat tracks under the aft attachments vs. the forward attachments).

Заранее спасибо!