查询词典 shaft

To the horizontal large main arbor , it is key to solve the inconvenience of fit, adjust and maintain evocable by the weight of shaft.

对于卧式布置的大型主轴，结构设计上要在保证主轴达到精度要求的条件下，着重解决因自重而引起的安装、调整、维修不便的问题，若重视不够，将使机床不能正常工作。

The risk factors of cost estimation in the shaft excavation engineering by project management are analyzed in this paper.

对实行项目管理的井巷掘进工程中成本估算所存在的风险因素进行了分析，针对不同的因素提出了相应的改善措施。

By the action of high roatry speed,excentric shaft connection intensifies the fatigue failure of drill tool .

为了达到较好的防斜目的，必须增大钻进时钻头的转速，在高转速的作用下，偏轴接头加剧了钻具先期疲劳失效。

In order to reduce the axle journal of mechanical strength loss, grinding the shaft seating surface wear uneven Department just to Polish it, and then to the journal after Polish excircle size, choose a higher wear resistance ZQAl7-1.5-1.5 bronze, confecting a plain bearings again, replacing the original linear ball bearing.

为了减多轴颈的板滞强度吃亏，磨削的尺寸以轴颈表背磨损不服处恰好磨平为好，再以磨平后的轴颈外方尺寸为基准，采取耐磨性能较矮的ZQAl7-1.5-1.5青铜合金，从头配制一只滑动轴承，替代本来的曲线滚珠轴承。

In this paper,author's research starts from the thermal expansivity and thermal transmission theory in physics,then utilizes the thermo elastic theory in mechanics of elastic bodies and the solution of statically indeterminate system in mechanics of materials as well as the interaction principle between soil and elastic body,finally gets the correct thermal stress analysis formulae of shaft-wall.

长期以来，在基岩段井壁结构的设计中，一直将地压作为结构设计的影响因素，实际上是不完善的；对于煤矿的进风井，井壁的温度随季节而变，因此，温度因素同样的应该考虑到井壁结构的设计中去；因此，将遗漏的因素补充入传统的设计理论中，是目前十分紧要的一项研究工作。

There are two types of shaft seal of ZGBpumps:expeller seal combined with packing seal and mechanical seal.

对于单级采用填料加付叶轮组合式密封，轴封水压力一般为0.2-0.3MPa。

Expeller, pressure-relief cover and shaft sleeve are made of wearable material, which are of low maintenance, long life

付叶轮、减压盖、轴套均采用耐磨材料制造，维修量少，使用寿命长，使整机平均无故障工作时间MTBF大大提高。

For expeller seal combined with packing, adjust degree of tightness of gland in time and replace packing termly, so as to insure a little of clear water through the shaft all the time.

对于付叶轮加填料组合式密封，应及时调整填料压盖的松紧并定期更换填料，以保证始终有少量的清洁水通过轴。

Expeller, pressure-relief cover and shaft sleeve are made of wearable material, which are of low maintenance, long life for use and greatly improve MTBF

付叶轮，减压盖，轴套均采用耐磨材料制造，维修量少，使用寿命长，使整机平均无故障工作时间MTBF大大提高。

Generally for pump with expeller seal combined with packing, adjusting impeller forward is advantageous for performance of pump and backwards increases shaft seal effect, so that may be adjusted according to users' practical needs.

一般地，对付叶轮加填料密封形式的泵，叶轮向前调整有利于泵性能，向后调整可增加轴封效果，故用户可根据实际需要调整。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。