H+K+L 38 40 41 42 解 :因立方晶系的晶格常数公式为： a?2222Sinθ 0.9114 0.9563 0.9761 0.9980 2?24sin2?(h2?k2?l2)，对应上表4组数据分

别有a =： 0.4972； 0.4980； 0.4990； 0.4995 2

Sinθ: 0.9114 0.9563 0.9761 0.9980 2

Cosθ: 0.0886 0.0437 0.0239 0.002 以a – Cosθ作图

由图解外推法得:a=0.49955

46. 欲在应力仪（测角仪为立式）上分别测量圆柱形工件之轴向、径向及切向应力工件各应

如何放置？假定测角仪为卧式，今要测定一个圆柱形零件的轴向及切向应力，问试样应该如何放置？

oo

答：当测角仪为立式式，可以使用同倾法中的固定Ψ法中的法0-45来测应力，此时测量方

o

向平面与扫描平面重合。测工件轴向应力时使圆柱侧面垂直于入射线（此时Ψ＝0),然后再

oo

使样品在测量方向平面内转动45（此时Ψ＝45）；测径向应力时，应使样品底面垂直于入

ooo

射线（此时Ψ＝0)，再使样品在测量方向平面内转动45（此时Ψ＝45）；测量切向应力时，应使工件切应力方向垂直于入射线，即使入射线垂直于切向于轴向所形成的平面（此时Ψ＝ooo0)，再使样品在测量方向平面内转动45（此时Ψ＝45）。

当测角仪为卧式时，可用侧倾法来测应力，此时即扫描平面（衍射平面）垂直于测量方向平面，当测工件轴向应力时，使工件位于轴向与径向所构成的平面内，侧面垂直于径向，扫描平面位于径向与切向所构成的平面内。测工件切向应力时，使工件轴向垂直于测角仪，测量时转动一定角度即可。

（英文版 ）

easily blame, to prevent the broken window effect. Supervise the leading cadres to play an exemplary role, take the lead in the strict implementation of the < code > and < rule >, lead to safeguard the solemnity and authority of the party discipline, ensure that the party discipline and the laws and regulations for implementation in place. Throughout the discipline in the daily supervision and management

, strengthen supervision and inspection, from the thorough investigation of violations of discipline behavior. Strengthen to key areas, key departments and key projects as well as the masses reflect the concentration of the units and departments for supervision. - strengthening supervision, discipline inspection and supervision of cadres to set an example for compliance with the < code > and < rule > is a man must be hexyl, blacksmith needs its own hardware. Discipline inspection organs as the executor of the party discipline, and supervisor of the defenders, for its supervision must be more strictly, discipline inspection and supervision of cadres to firmly establish the awareness of Party Constitution, sense of discipline and rules consciousness, politics loyalty, sense obey. Action speak Ji Ordinance to set an example of the

regulations of the rule of law, strengthen supervision and accept the supervision of the firmness and consciousness, do comply with < > and < >. To firmly establish the discipline must first be disciplined, the supervisor will be subject to the supervision of \and consciously safeguard and implement party compasses party, take the lead in practicing\three strict real strict, so loyal, clean, play. To be good at learning, the Constitution and the < code > as morality, politics and brought to fruition; to implement < >, do not want to, dare not, not with disciplinary ruler to supervision; to discipline a ruler, often the control inspection, and consciously in the ideological red line to draw the row Ming Good accumulation is indeed the bottom line, so that the heart has fear, said to have quit, the line has ended. Attached: indifferent to heart, calmly to the table in our life, there are many unpredictable things will happen, some good, some bad things, we cannot control is powerless to stop, but with time, you will find in life sometimes turns out to be not good, some bad things finally turned out to be a good thing, but then we muddy however did not know, this is the life teach us things. 1, life can be complex, can also be simple. Want simple life of precipitation, to have enough time to reflect, to make Become

more perfect. Life is the most important thing is not to win, but the struggle; not to have conquered, but to have fought well. 2, the plain is the background of life. Live a plain life, give up on themselves is not a coward, but the wise answers; not disillusioned after the heart, such as ashes, but experience the storm after the enlightenment; not unrewarding perfunctorily, but calm attitude of life of unrestrained self-confidence. Plain living, there is no noise noisy, no earthly troubles, more did not fill in the discontent of desire, some just a calm, a calm. 3, memory of heart will not good things to erase the, life is a When no movie, pain is a beginning, the struggle is a kind of process, death is a kind of ending. Give up this giving up is the helpless, do not give up the abandoned, do not give up this giving up is ignorance, do not give up should not give up is persistent. 4, a thing figured is heaven, think impassability is hell. Since the living, to live better. Sometimes we because of too narrow-minded, too care around the chores and penny wise and pound foolish, not worth the candle. Some things to attract trouble and worry, completely depends on how we look at and deal with it. Don't always take everything back to things, and don't get into a blind alley, don't want to face, don't be narrow-minded. Poke to care, is a kind of