必须的

This study is design and preparation of active peptide analogues of mung bean trypsin inhibitor Lys fragment, Trichosanthes trypsin inhibitor I, carcinoembryonic antigen peptide and aspartame using solid and liquid phase peptide synthesis methods.

本论文研究活性多肽类似物的设计、制备和功能，分为四个部分，采用多肽固相和液相合成的方法，分别合成了活性多肽绿豆胰蛋白酶抑制剂 Lys片段长链16肽、天花粉胰蛋白酶抑制剂、癌胚抗原肽、甜味肽等一系列类似物，并测定了这些类似物的生物活性，有以下新的研究结果：1、furin酶抑制剂的设计、制备和功能；2、芳香氨基酸芳环之间的π-π共轭能部分补偿二硫键的作用；3、癌胚抗原肽Gly4被L-Pro替代可增加与HLA-A2分子的结合；4、肽键对甜味肽保持甜味是必须的。

U.S. military action in particular seemed entirely a matter of choice, not necessity—the product of our desire to slap down rogue states, perhaps; or a function of humanitarian calculations regarding the moral obligations we owed to Somalis, Haitians, Bosnians, or other unlucky souls.

特别是美国的军事行动似乎完全是选择性的，而不是必须的——这也许是我们意欲镇压不听话国家的产物；或者是在人道主义方面的角色，因为这是我们欠索马里、海地、波斯尼亚或其它不幸的人的道德责任。

In the process of providing public service for the whole society, as the authority on the social public power, it is necessary for the governments to produce certain cost, but if the government seeks rent through the right "omission" and "offside", deviates from the track of serving society, and dissimilates as a mixture of public interests and their own interests pursuing, it inevitably cause the mediocre, inefficiency and corruption, thus it will produce serious social problems.

政府作为社会公共权力的执掌者在为社会提供公共服务的过程中，发生一定的成本支出是必须的，但如果通过权利&缺位&与&越位&进行寻租，偏离为社会服务的轨道，异化为集追求公共利益和自身利益为一身的混合体，则必然导致平庸、无效率和腐败，从而产生严重的社会问题。

For example, the object is composed of four blocks, i.e. block A, B, C, D. Block A locates the left of block B and above block C. According to order, its code is ABDC etc. This code does not change its order after the object rotates, zoom, downsizes. The disadvantage of this method is that it will lose the target when the color is changed.A video fluid is composed of compressed data which include I, P and B(bi-prediction) frame. The data of each block of P frame is predicted by motion prediction and compensation from the data and motion vector of I frame.

MPEG视频流由I、P、B组成，为减少空间、时间的冗余，P帧的数据来自已经解压缩的I帧和P帧，B帧的数据来自已经解压缩的I帧和P帧或者P帧和P帧，这些需要解码的图像通过运动预测和补偿对P帧／B帧进行解码，P帧／B帧中每一个宏块的数据来自于最佳匹配的相应I帧和P帧或者P帧和P帧中，以及图像变化而必须的运动补偿。

"Long-term skin cancer and actinic keratoses surveillance continue to be important,and repeated resurfacing procedures or courses of topical agents,such as fluorouracil or imiquimod, may be necessary," the researchers write."A largerstudy comparing trichloroacetic acid resurfacing for actinic keratoses reductionand nonmelanoma skin cancer prophylaxis would help validate the superiority ofthis resurfacing technique over the carbon dioxide laser andassess its cost-effectiveness compared with photodynamic therapyor imiquimod treatment." They cite improved patient compliance in the trichloroacetic-acid group, ease of performance in the outpatient setting, andsubjective measures of better tolerance as reasons this procedure is an attractive alternative to repeated courses with topicalagents or laser resurfacing.

研究者指出，长期皮肤癌和光化性角化病之监测仍是重要的，反覆的皮肤重建整形步骤、或外用制剂如fluorouracil 或 imiquimod的反覆疗程也可能是必须的；一个比较三氯醋酸皮肤重建整形以减少光化性角化病和预防非黑色素皮肤癌的大型研究，将可有助於确定其优於二氧化碳雷射的优势，以及评估其和光动力治疗或 imiquimod治疗之花费效益比比较；他们举例说，三氯醋酸组病患之遵医嘱性增加、门诊病患也容易进行、个案之测量耐受度比较佳，这些都是重复疗程时比外用药剂或雷射更有吸引力的理由。

Below 300 300 to 1200 Ordinary Portland or Portland blastfurnace Ordinary Portland or Portland blastfurnace Sulphate resisting Supersulphated Sulphate resisting or Supersulphated High alumina Sulphate resisting or Supersulphated High alumina Sulphate resisting or Supersulphated with adequate protective coating High alumina Minimum cement content (kg m-3) Type of cement Maximum size of aggregate 37.5 240 290 240 270 290 290 330 330 330 330 19.0 280 330 280 310 330 330 370 340 370 370 9.5 330 380 330 360 380 380 420 410 420 420 0.55 0.50 0.55 0.50 0.50 0.45 0.45 0.40 0.45 0.35 Maximum water-cement ratio 0.5 to 1.0 1.0 to 2.0 1200 to 2500 2500 to 5000 Over 2.0 Over 5000 Wear

这些气 穴通常由具有格外高能量的水蒸气所填充，与混凝土表面的反复接触导致形成凹陷和孔洞，即气蚀。既然高质混凝土也不能抵抗这种劣化，因此最好的补救是通过制造平滑水流来消除气蚀。在所有必须的地方，关键的面上衬以高抗气蚀性的材料。通常，混凝土抗腐蚀和磨损的能力随强度增加而提高。采用硬韧的集料可改善混凝土的抗磨损性。

Highly active, small-molecule furin inhibitors are attractive drug candidates to fend off bacterial exotoxins and viral infection. Based on the 22-residue, active Lys fragment of the mung bean trypsin inhibitor, a series of furin inhibitors were designed and synthesized, and their inhibitory activity toward furin and kexin was evaluated using enzyme kinetic analysis. The most potent inhibitor, containing 16 amino acid residues with a Ki value of 2.45×10~(-9) M for furin and of 5.60×10~(-7) M for kexin, was designed by three incremental approaches.

本论文研究活性多肽类似物的设计、制备和功能，分为四个部分，采用多肽固相和液相合成的方法，分别合成了活性多肽绿豆胰蛋白酶抑制剂Lys片段长链16肽、天花粉胰蛋白酶抑制剂、癌胚抗原肽、甜味肽等一系列类似物，并测定了这些类似物的生物活性，有以下新的研究结果：1、furin酶抑制剂的设计、制备和功能；2、芳香氨基酸芳环之间的π-π共轭能部分补偿二硫键的作用；3、癌胚抗原肽Gly4被L-Pro替代可增加与HLA-A2分子的结合；4、肽键对甜味肽保持甜味是必须的。

A smtp mailer is included to send mail directly from SignStation to your receipts and attach you files and public certificates in an easy way with all the "must" of the best-selling mailers, and the benefit of having its own mail engine that avoid you some viruses common attacks.

一的SMTP邮件是包括发送邮件，直接从signstation到您的收益及重视您的档案和公共证书，在一个简单的方法与所有&必须&的最畅销的邮件，并造福於拥有自己的电子邮件引擎，避免您一些常见的病毒攻击。

A smtp mailer is included to send mail directly from SignStation to your receipts and attach you files and public certificates in an easy way with all the "must" of the best-selling mailers, and the benefit of having its own mail engine that avoid you some viruses common attacks.

一的SMTP邮件是包括发送邮件，直接从signstation到您的收益及重视您的档案和公共证书，在一个简单的方法与所有&必须&的最畅销的邮件，并造福于拥有自己的电子邮件引擎，避免您一些常见的病毒攻击。

When I suddenly realized the plight of the chimpanzees around the worl d, both in the wild and in captivity,当我突然认识到全世界的黑猩猩,无论野生的还是圈养的,正面临困境时, I knew that I must leave my forest paradise - although I do believe I keep some of it inside, the peace of the forest - and travel around the wor ld and try to raise people's awareness - not only about the plight of chimpan zees, but about the plight of the poor old planet.

我知道我必须离开我的丛林天堂——虽然我相信我保持着丛林的安宁——去环游世界和试图提高人们的意识——不但关于黑猩猩的困境，也关于这个可怜的星球。

This paper discusses design and realizable methods of remote test output interface from logical design angle.

本文从逻辑设计的角度讨论遥测输出接口的设计及实现方法。

This also 星体投射plies to buildings, structures and geological features.

这也适用于建筑物和地质特征。