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4 Safe maintenance and environment protection in the plant.
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安全维修，注意环保. |
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4 Sash guides shall be constructed from corrosion resistant polyvinyl chloride or equivalent material.
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移门导向装置由抗腐蚀的聚氯乙稀或相近材质构成。 |
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4 Scaffolding that is required to support a load must visibly display the maximum load permitted and all persons using the scaffold must be informed of the restrictions of use for the particular arrangement (load capacity, general access, inspection only,
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需要承受负荷的脚手架必须清楚地显示最大允许负载，必须向所有使用该脚手架的人员通报特别的使用限制（仅指负载能力、一般进入、检查等）。 |
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4 Scaffolds shall be built or dismantled in a manner to prevent passage from under the scaffold.
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安装和拆卸脚手架使用的方式必须考虑脚手架下的行人安全。 |
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4 Schmidt Nowara WW,Meade TE ,Hays MB. Treatment of soring and obstructive sleep apnea with a dental orthosis. Chest,1991,99(1);1378.
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5刘月华，曾祥龙，傅民魁，黄席珍。口腔矫正器治疗阻塞性睡眠呼吸暂停综合征的疗效分析。中华口腔医学杂志，1998；33（6）；23。 |
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4 Scope Verification—formalizing acceptance of the project scope.
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范围核实－正式接受项目范围。 |
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4 Secretary of State Condoleezza Rice refuses to rule out US troops still in Iraq in ten years or the US use of military force against Iran and Syria.
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国务卿赖斯拒绝在伊拉克的美军在十年内撤军，美国不会动用武力针对伊朗和叙利亚。 |
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4 Sessions per course, 1 hour each, Aged 6-12. Provide training for children's health, and calm as well as confident. To form a habit of loving and caring for animals through horsemanship.
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每期四堂策骑课，每课一小时，年龄由六岁至十二岁。内容为培育小朋友果敢、自信的气质、冷静头脑、锻炼健康的体魄，让小朋友学会习骑之馀，还学会有爱心关怀动物。 |
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4 Sessions per course, 1 hour each, for intermediate rider. The course builds upon the beginner classes with advance techniques that teach more control and movement such as trot and canter.
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每期四堂策骑课，每课一小时，适合进阶者。教授内容为进阶策骑技巧、踱步及慢跑。 |
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4 Sevens = intrigue； 3 Sevens = infirmity； 2 Sevens = news.
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4张七=阴谋；3张七=虚弱；2张七=新闻。 |
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4 Sevens = quarrellers； 3 Sevens = joy； 2 Sevens = women of no repute.
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4张翻倒的七=争吵的人；3张翻倒的七=喜悦；2张翻倒的七=没名气的女人。 |
