chassis最标准发音为什么在百度词典 有道 必应的发音都不相同 还是说都正确 个人比较倾向于百度词典的发音,感觉这个

英语翻译
The chassis is an assembly of those systems that are the major operating parts of a car .It includes the transmission,suspension,steering and brake systems.The transmission system is a speed and power changing device and conveys the drive to the wheels.Its main components comprise the transmission case,input shaft,output shaft,countershaft,driving gear,transmission fork,etc.

宏基开机出现warning!your chassis has been opened
warning!your chassis has been opened
press F1 to continue
press del to Enter blos setup
宏基开机出现
warning!your chassis has been opened
press F1 to continue
press del to Enter blos setup
请问怎样解决

宏基 VX275开机提示Warning!Your chassis has been opened,
VX275、VM275、VM220、 VM264也同样有这个问题.

英语翻译
A chassis in general is required to carry the weight of the vehicle and its passengers; to withstand the engine and transmission torque,thrust,accelerating and braking torque; to resist the effect of centrifugal forces when cornering a curve; and to withstand bending and twisting stresses due to the fluctuating of rear and front axles.For these purposes,the chassis frame is made up of two side members constructed either of channel of boxscotions and welded or riveted to the horizontal members.To permit sufficient movement of the steering wheels,the frames taper inwards at the front of the taper starting at the rear runs for the full length of the vehicle.To allow for the vertical movement of the rear axles,the side members also sweep upwards.
In order to provide a good resistance to bending and torsional effects the frame sections should be made of proper forms.There are three common types of frame section,i.e.channel,tubular and box which are used on the motor vehicles.Channel section provides good resistance to bending but is poor in torsion while tubular sections provide good resistance to torsion and poor resistance to bending.The box sections are comparatively resistant to bending and torsion.
In comparison to heavier solid rectangular sections,a slightly deeper or box section provides the same resistance to bending.The main factor governing the strength of the tubular section is the distance between the top compression member and the lower tension member.For drilling a hole in the chassis frame either to reduce the weight of attach some component to it,it should be located in a low-stress region or the neutral axis.To avoid breaking of a beam at the centre due to the stress being greatest at this point,the beam should be provided either the same deep section throughout or a varying depth sections in comparison to stress.
The design of the frame should be such as to give clearance for bump movement of axles and steering movement of the front wheels for which the pressed steel channel section side members are up swept over the axles and inswept at the front.By varying the depths of the section according to the stress requirements,the bending of the side members can be resisted.
A cruciform or X type bracing riveted to plate at the centre is used to prevent the lozenging of the frame.But this type of frame is weak in torsion and has to take up many stresses resulting in cracking of certain body panels,rattling and movement between door and pillar.
Now carbon steel (0.15%~0.25%)is generally used to make most of the frame members.But for highly stressed commercial vehicles frames,a steel of slightly higher carbon content (0.15%~0.30%)respective to heat treatment is used.
Nowadays frames are made as rigid as possible by stiffening them with sufficient cross bracings.