爱护牙齿心得体会

地形平坦开阔，地层由第四系全新冲积层，第四系上更新统冲层组成，局部表覆第四系全新统人工堆积层。第四系全新统冲积层厚度约25～50m，岩性主要为黏土、粉质黏土、粉土、粉砂、细砂；第四系上更新统冲积层厚度大于50m，岩性主要为黏性土、粉土、粉细砂等。管桩深度范围内地层主要为：粉土、黏土、粉质黏土，局部表层为杂填土。couplingCentreshallbechecked,thesecondpouredconcretestrengthofmorethan70%.Intheprocessofreamingorboring,apartfromthespecialprovisionsinfactory,doesnotallowanyworkthatmayaffectthecouplingCentre,suchasirrigation,tocylinderconnectionstofloodthecondenserpipesandsoon.Wellboring,hingeboltholeflangewithcouplingofvertical,notoblique.Mountingboltsshouldbeaddedlubricants,typinggentlywithasmallhammer,nottoolooseortootight,packedtheboltswiththecorrespondingsealscrewholeshouldbemarked.6.4.5.4.2couplingreamedandpairingsisclosetothediameterofboltbearinggoodhingeholes,dressedwithagoodtwocouplingboltsbeforeyoucanmovetherotor,boring-reamingholeinturn.Couplingboltsmustbetightcouplingissymmetricaldiameter,inboring,reaming,twoboltsout.Wellboring,hingeboltholeflangewithcouplingofvertical,notoblique.Duetothecouplingboltsinaccordancewithhingeholescorrespondingtothediameterofthescrewholesonebyoneafterprocessing,processingbackboltinstallationlocationcannotbechanged,soaccordingtoboltaftertheactualweightdifferenceofnutandlockwashertomatch.Generalrequirementsforcouplingtwosymmetricaldiameterbolt,nutandlockwasher'stotalweightdifferenceshouldnotbegreaterthan10gandknocksstampedmark.(SeeFigure18)Thecouplingboltsapplylubricant,andthengentlywithcopperhome,nottoolooseortootight.BoltAssemblyisfinished,symmetricaltighteningallboltsto30%,50%,70%,100%force,andcheckthecouplingflutterandbeforeconnectingthecirclegraduallychangesitsvalueshouldbelessthan0.02mm.Tighteningtorqueofthecouplingboltsshallcomplywiththetechnicalrequirementsmanufacturersdrawings,withadynamometricwrenchorlogtensiontools.Threewheelrotorswingtestcouplingconnectionsshouldbechecked:takingleave,小学生正处于生长发育时期，牙齿的好坏影响全身的健康和面部的发育，因此，为了健康和有一副洁白、整齐的牙齿，必须注意牙齿的保护。要养成刷牙漱口的好习惯。因为口腔进食后会留下一些残渣或怪味，如不及时刷牙、漱口，就会发酵生酸，助长细菌繁殖，使牙齿腐蚀，久之会影响肠胃消化功能。因此，要教育孩子养成早晚刷牙、饭后漱口的习惯。一些家长只注意让孩子早上刷牙，忽略了晚上刷牙。事实上，晚上刷牙的效果比早上刷牙要好得多。因为入睡后，人的口腔内处于相对静止状态，唾液分泌量减少，使冲刷作用减小，这样，食物残渣就易留于口腔中，致使微生物生长繁殖。如果在入睡前刷牙，可把食物残渣和细菌刷去，使口腔在整个夜晚处于清洁状态，这对于预防牙周病和龋齿大有好处。要有正确的刷牙方法。要注意使每个牙齿的各个外表面都能被刷到，这样才能真正起到清洁牙齿的作用。正确的刷牙方式应是竖式刷牙法，刷上排牙齿要从上往下刷，刷下排牙齿则从下往上刷，对咀嚼面则来回横着刷。刷牙时，将牙刷手端横放于牙面上，把刷手顺羊牙龈稍压一下，然后转动牙刷柄，上下反复进行刷牙，时间约三分钟。如果用模式刷牙法，牙缝里的食物残渣不易刷掉，反而可能把牙根部刷成三角形的缺损，诱发牙龈炎。购买刷时，要选择手束少、软硬适中的保健牙刷，因为儿童的口腔粘膜及牙龈都很娇嫩，用硬手牙刷容易刺伤牙龈。牙膏的选择也应适当，地形平坦开阔，地层由第四系全新冲积层，第四系上更新统冲层组成，局部表覆第四系全新统人工堆积层。第四系全新统冲积层厚度约25～50m，岩性主要为黏土、粉质黏土、粉土、粉砂、细砂；第四系上更新统冲积层厚度大于50m，岩性主要为黏性土、粉土、粉细砂等。管桩深度范围内地层主要为：粉土、黏土、粉质黏土，局部表层为杂填土。couplingCentreshallbechecked,thesecondpouredconcretestrengthofmorethan70%.Intheprocessofreamingorboring,apartfromthespecialprovisionsinfactory,doesnotallowanyworkthatmayaffectthecouplingCentre,suchasirrigation,tocylinderconnectionstofloodthecondenserpipesandsoon.Wellboring,hingeboltholeflangewithcouplingofvertical,notoblique.Mountingboltsshouldbeaddedlubricants,typinggentlywithasmallhammer,nottoolooseortootight,packedtheboltswiththecorrespondingsealscrewholeshouldbemarked.6.4.5.4.2couplingreamedandpairingsisclosetothediameterofboltbearinggoodhingeholes,dressedwithagoodtwocouplingboltsbeforeyoucanmovetherotor,boring-reamingholeinturn.Couplingboltsmustbetightcouplingissymmetricaldiameter,inboring,reaming,twoboltsout.Wellboring,hingeboltholeflangewithcouplingofvertical,notoblique.Duetothecouplingboltsinaccordancewithhingeholescorrespondingtothediameterofthescrewholesonebyoneafterprocessing,processingbackboltinstallationlocationcannotbechanged,soaccordingtoboltaftertheactualweightdifferenceofnutandlockwashertomatch.Generalrequirementsforcouplingtwosymmetricaldiameterbolt,nutandlockwasher'stotalweightdifferenceshouldnotbegreaterthan10gandknocksstampedmark.(SeeFigure18)Thecouplingboltsapplylubricant,andthengentlywithcopperhome,nottoolooseortootight.BoltAssemblyisfinished,symmetricaltighteningallboltsto30%,50%,70%,100%force,andcheckthecouplingflutterandbeforeconnectingthecirclegraduallychangesitsvalueshouldbelessthan0.02mm.Tighteningtorqueofthecouplingboltsshallcomplywiththetechnicalrequirementsmanufacturersdrawings,withadynamometricwrenchorlogtensiontools.Threewheelrotorswingtestcouplingconnectionsshouldbechecked:takingleave,氟化物牙膏有预防龋齿的作用，能儿童很适宜。牙刷、杯子要专人专用，以防口腔疾病的传播。要注意预防孩子得龋齿。龋齿是牙齿经常受到口腔内酸的侵蚀，使釉质受到腐蚀变软、变色，渐渐发展为实质性缺损而形成龋洞，久之会变大变深，最后形成残根，甚至使牙齿全部被破坏。龋齿会影响儿童的咀嚼、消化、吸收，进而影响其食欲。预防的措施有：注意口腔卫生，早晚刷牙；锻炼身体，注意营养，让孩子每天都接触足够的阳光；定期进行口腔检查。如发现孩子已患龋齿，应及早去医院诊治。另外，在日常生活中要注意睡觉前不要吃东西，要适当限制食用蔗糖、果糖量较高的食物。还要注意不要用牙咬核桃、酒瓶等坚硬的东西，以防牙齿受损，难以弥补。A、每天必做的保养功课－－有效刷牙。实行“三三制”：每天刷牙3次，每次刷3分钟或更长的时间。且要注意将刷毛与牙面成45度角，转动刷头，尽最大的可能每一颗牙齿都刷到，让牙刷在上下牙列面间来回移动，以清除深处的残垢。不要横着刷牙，也不要非常用力。B、选择适合自己的牙刷、牙膏。牙刷：只有选用符合口腔卫生要求的保健牙刷，才能起到洁牙的效果，并且不损伤牙齿及牙周组织。保健牙刷其特点是：刷头小，在口腔中转动灵活；刷毛排列合理，便于清洁牙齿，刷牙后牙刷本身也容易清地形平坦开阔，地层由第四系全新冲积层，第四系上更新统冲层组成，局部表覆第四系全新统人工堆积层。第四系全新统冲积层厚度约25～50m，岩性主要为黏土、粉质黏土、粉土、粉砂、细砂；第四系上更新统冲积层厚度大于50m，岩性主要为黏性土、粉土、粉细砂等。管桩深度范围内地层主要为：粉土、黏土、粉质黏土，局部表层为杂填土。couplingCentreshallbechecked,thesecondpouredconcretestrengthofmorethan70%.Intheprocessofreamingorboring,apartfromthespecialprovisionsinfactory,doesno