必须

Ticket limit:China to Poland, China fly Poland ticket price inquiry flightsTime:1, ticket booking 21 days prior to departure from the book must be in 14 days after a ticket, 21 days starting from the book must be within 7 days after booking tickets, starting from within 7 days after the book must be within 24 hours in book tickets

机票价格，中国飞波兰航班查询 1、出票时限：距出发21天前预订必须在预订后14天之内出票，距出发21天内预订必须在预订后7天之内出票，距出发7天内预订必须在预订后24小时之内出票

History tells us that socialist market economy is a practica...

历史深刻启迪我们，社会主义市场经济是社会主义社会文明的现实选择，必须坚定不移地做好社会主义与市场经济相结合的文章；体制改革与制度调整是社会主义社会文明的建设机制，必须坚定不移地发挥改革在社会主义文明进程中的多层面作用；以人为主体的协调发展和可持续发展是社会主义社会文明的价值目标，在发展市场经济的过程中必须高度重视社会文明机制的建构。

Thus, it is necessary to introduce Theory of Dutiful Consultation and Theory of Dutiful Concluding a Treaty which are important theory about the validity of precontract.

因而，对当前预约效力的两种主要观点―"必须磋商说"和"必须缔约说"进行分析实为必要，并在此基础上阐明"必须缔约说"的合理性，提出当事人的具体义务及义务违反后的法律责任，以期对现实纠纷的解决有所裨益。

William Bennett, MD, from the Legacy Good Samaritan Hospital, in Portland, Oregon, remarked in a comment to Medscape that the bulletin does a good job of raising awareness of the need to adjust medication doses when treating patients with CKD."It's a call to be a responsible prescriber," he said. He stressed that practitioners need to take into account why they are treating their patient with the drug they have chosen.

奥勒冈州波特兰Legacy Good Samaritan医院William Bennett医师在一项评论中向Medscape表示，该期刊唤起大家对於CKD病患使用药物的剂量必须经过调整的注意，他表示，必须做个有责任的处方医师，他强调，执业者必须将为什麼使用这些药物治疗这些病患列入考量。

Hereafter this provision several pass through the change, at present besides sought the revolting crime to punish already became invalid, the effective content was: Must believe in the British national religion including royal court all aristocrats, should teach for the national legal orthodox church, all united kingdom legitimate residents must acknowledge that the protestant episcopal church for the British national religion only church, must acknowledge British king for the national religion leader

此后该条款几经变更，目前除了以谋叛罪论处已经作废外，有效的内容是：包括王室在内的所有贵族都必须信奉英国国教，该教为国家法定正教，所有联合王国合法居民都必须承认圣公会为英国国教唯一教会，都必须承认英国国王为国教领袖。

It should be pointed out that the amount of oxygen that must be absorbed, or peroxides that must be formed, to produce noticeable oxidative rancidity varies with composition of the oil , the presence of antioxidants, and the conditions of oxidation.

必须指出的是，为得到明显的氧化性酸败随油的成分，抗氧化物的存在，以及氧化条件的变化关系，必须吸收氧或者必须形成过氧化物。

To sort or re-sort, you must move each individual element in memory, and there is always the aspect that they must be consecutively stored, that you must keep in mind.

要排序或重新排序，你必须将内存中的每个单独的元素，而且始终是它们必须连续存储方面，你必须牢记。

However, if you swim in outdoor natural river, lake and sea, you must pay attention to the followings: water must be clean running water without any infectious disease; river bottom must be sand bottom without any sludge, riprap, growing float grass, submerged rock, sharp plants and fishes injuring human; zone must be one without busy transportation with smooth water flow.

经过卫生防疫部门检查合格的开放游泳池当然是比较理想的游泳场所，但如果在户外天然的江河湖海中游泳则必须注意：水必须是清洁、无传染病的活水；河底必须是无淤泥、乱石、丛生水草、暗礁、尖利植物及伤人的鱼类的沙底；水流平缓而非交通频繁地带。

All ofusers of the system are separated into eight soles, and each sole has different privileges. Users are assigned and privileged by DBA. Any user must pass the identity validation before using the system. IP banding is used to increase the security of the system on hardware, which means the DBA must usethe IP set by program. Leaders can function as sanctifier of important information when using the system.

根据用户的职能，把系统用户分成八个角色，每个角色根据各自的职能拥有不同的权限，用户由系统管理员分配和授予角色，必须首先经过身份验证才能进入系统；在硬件方面实行IP绑定，由服务器程序设定了行使系统管理员职能必须使用规定的IP地址；对重要信息的管理必须由主管领导审批，为此设计了各级领导的审批功能。

She had to fight for national independence because her status was still that of a semicolonial power under foreign domination; she had to fight for democracy, for she was still under a despotism; and she had to create an agrarian revolution because she was still choking among feudal weeds.

中国必须争取民族独立，因为它仍然处于受外国支配的半殖民地地位；中国必须争取民主，因为它仍然处于专制统治之下，中国必须开展土地革命，因为它仍然被封建地权所束缚。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。