保持

Sample and Hold Circuit The sample and hold circuit is used to take a narrow-band measurement of a time-changing signal and to hold that measured value until reset.

采样保持电路采样保持电路，是用一个窄波段测量时间变化的信号，并认为测值，直至复位。

It mainly enlarges the digital to tallies chip through Amplifier. It holds the sampling digitalpass to convenience transforming for the chip through sample and hold Circuit, thus it can complete the measurment of current digital y.

主要是通过放大电路将采样到的模拟量放大到和芯片相吻合的数字量，通过采样保持电路将采样的数字量保持住以便后面的芯片进行转换，从而完成电流数字量的测量。

It can complete the measurement of AC/DC voltage.The running process: it enlarges the digital to tallies chip through Amplifier. It holds the sampling digitalpass to convenience transforming for the chip through sample and hold Circuit.

运行过程是：将采样的模拟量通过放大电路放大到和模数转换芯片相适应的量，通过采样保持电路将芯片采样的量保持住后送入模数转换器转换成数字量，再由单片机进行控制计算。

It can complete the measurement of AC/DC voltage. The running process: it enlarges the digital to tallies chip through Amplifier. It holds the sampling digital pass to convenience transforming for the chip through sample and hold Circuit.

运行过程是：将采样的模拟量通过放大电路放大到和模数转换芯片相适应的量，通过采样保持电路将芯片采样的量保持住后送入模数转换器转换成数字量，再由单片机进行控制计算。

Help advance somebody's career what what is appropriate to the occasion offers fixed rate is shady, maintain temperature to be in 12, 29 ℃ left and right sides, winter temperature appropriate is maintained in 16, 18 ℃, chun Xia two season grow exuberant, need taller air humidity, can undertake sparge; To soil the requirement does not father very, but the requirement keeps measurable and wet, grow seasonal, about 2 weeks apply fertilizer, and winter soil can work a bit and cool, reduce fertilization number; The method of minute of root is used more when breed; At Chu Xia season undertakes, return the method that can use cuttage additionally; Main pest has powdery flea, red spider, aphid, scale insect to wait.

栽培时宜给予一定程度的遮阴，并保持温度在12—29℃左右，冬季温度宜维持在16—18℃，春夏两季生长旺盛，需较高空气湿度，可进行喷雾；对土壤要求不甚严，但要求保持适度湿润，生长季节，约2周施一次肥，而冬季土壤可稍干和凉爽，并减少施肥次数；繁殖时多采用分根的方法；于初夏季节进行，另外还可采用扦插的方法；主要害虫有粉蚤。红蜘蛛。蚜虫。介壳虫等。

Be self-assured; keep your head up when walking and make eye contact with people approaching you.

保持有自信的形像；步行抬头遇到其他人时保持冷静和接进你的人做目光交流。

Equal and exact justice to all men, of whatever state or persuasion, religious or political; peace, commerce, and honest friendship with all nations, entangling alliances with none; the support of the State governments in all their rights, as the most competent administrations for our domestic concerns and the surest bulwarks against antirepublican tendencies; the preservation of the General Government in its whole constitutional vigor, as the sheet anchor of our peace at home and safety abroad; a jealous care of the right of election by the people-a mild and safe corrective of abuses which are lopped by the sword of revolution where peaceable remedies are unprovided; absolute acquiescence in the decisions of the majority, the vital principle of republics, from which is no appeal but to force, the vital principle and immediate parent of despotism; a well disciplined militia, our best reliance in peace and for the first moments of war, till regulars may relieve them; the supremacy of the civil over the military authority; economy in the public expense, that labor may be lightly burthened; the honest payment of our debts and sacred preservation of the public faith; encouragement of agriculture, and of commerce as its handmaid; the diffusion of information and arraignment of all abuses at the bar of the public reason; freedom of religion; freedom of the press, and freedom of person under the protection of the habeas corpus, and trial by juries impartially selected.

要给予人人以平等和公正的待遇，不问其地位或宗教上或政治上的信仰；与所有国家和平相处，相互通商，并保持诚挚的友谊，但不耽于跟任何国家结盟；维护各州政府一切权利，使各州成为处理我们内政最合适的行政机构，和抵制反共和趋势的最有力的屏障；根据宪法保持全国政府的全部活力，作为对内和平及对外安全的最后堡垒；注意维护人民的选举权，因独立战争时留下的弊端没有和平的补救辨法，人民选举权乃是对那些弊端的一种温和而安全的矫正手段；绝对服从多数的决定，这是共和政体的主要原则，若非如此，便只好诉诸武力，而这就是专制的主要原则和直接起源；维持纪律严明的民兵，作为和平时期和战争初期最好的依仗，以待正式军队的接替；实行文权高于军权；节省政府开支，减轻劳动人民负担；如实清偿我们的债务，审慎地维护公众的信心；促进农业，并鼓励商业扶助农业；传布知识并以公众理智为据谴责一切弊端；保障宗教自由及出版自由，并以人身保护令和公平选出之陪审团进行审判来保障人身自由。

They should always be within shouting and running distance of their children.

家长应该在和孩子保持近距离以照看他们，确保孩子们喊话能让家长听到，能够及时跑到家长身边，保持这样的距离才对。

Turning off all equipment at the end of each day, throughout the facility Maintain the Disney standard of customer interaction by:Providing a warm and sincere greeting to guestsBeing proactive in anticipating guests' needsReacting immediately to help resolve a guest's requestGeneral Center:Sorts employee mail Is familiar with Center Operations and enforces policies/rules as necessary Oversees pick up and drop off of packages/items from Learners, Parents, Visitors, Delivery, and Messenger services Orders supplies and assists other departments with general work and mailings as neededLearner Administration:Call learner to confirm attendance to class Record sick leave Prepare the attendance list at least 12 hours before the class Oversee learner check in and check outSecretarial Support to the Center Manager:Maintains master attendance records for all employees Maintains current address information for all FT employees and keeps the appropriate people informed of these changes Assists with special projects for the Center Manager as necessaryService to Guests:Ensure that all leads are greeted well and meet sales within 15 minutes Assist waiting parents and ensure that learners are effectively routed to class on timeGeneral Qualifications:Pro-active, detail oriented, have the ability to be flexible, and be able to multi-task in a fast-paced and dynamic office.

及时更新目前的电话名单，以及学习中心议事日程和课程表协助外教开展活动确保所有设备和影片都是正确运作。在电脑上，检查中心显示器和电视显示器正常运作。负责在真个工作日结束后关掉学习中心的所有设备保证迪士尼与客户互动的标准：提供一个表示热烈和诚挚的状态接待客人随时积极主动地应答客户的需要对客户的需求立即作出反应并协助解决日常工作：对各类雇员邮件进行分类。必须熟悉中心的运营和执行的政策/规则。监督发往学员、家长、访客等信件的封装和样式。为其他部门的日常工作和邮件提供支持。学员管理：确保学员准时出席。记录病假情况。至少12小时之前准备好出席名单。监督学习者签入和签出。学习中心经理秘书工作：掌握所有雇员出勤纪录。保持目前的地址信息，为所有英尺雇员和保持适当的人了解这些变化。助攻与特别项目为中心的经理，作为必要的。客户服务：确保所有来电和询问在15分钟内转接到销售部门。协助等候的家长和学员由有效通道准时到达授课区。职位要求：积极主动，注重细节，能同时灵活安排和管理多项工作，并能在一个快节奏和动态的环境下开展工作办。

Fundamental concepts in power system differential-algebraic equations model, like singular point and multiple energy function sheets defined on constraint manifolds, are studied.

所得研究成果揭示了微分代数模型与奇异扰动模型的本质区别、奇异性与系统模型和系统负载的联系、结构保持能量函数法可能具有的内在保守性等，这对深入理解电力系统微分代数方程模型的拓扑结构、结构保持能量函数法和暂态电压稳定及其与功角稳定的关系具有一定的价值。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。