查询词典 constraints

This paper proposes an approach for formalizing transformation constraints with graph productions.

提出了一种基于图转换的特性保持约束描述机制，将模型演化与重构中的转换规则以及特性保持约束都描述为图转换规则。

However, years of a coal logistics constraints impeded the economic development of Shanxi coal resources.

然而，多年的煤炭物流不畅成了制约山西煤炭经济发展的&瓶颈&。

The average percent value of G C (49.3%) was less than that of A T (50.7%), there was a bias of the content of G, T in the third codon; The number of transition G-A and T-C were 22, 15 respectively, which were higher than that of transition A-G and C-T, the number of tranversion C-A, T-G is 2 respectively, and other tranversion patterns didnt occur; the probability of transition was higher than that of tranversion , Ts/Tv = 9.5-19, there was the highest number of transition in the third codon. The gamma parameter a of the lst,nd and 3rd codon positions were 0.00572,0.01237 and 1.05239 respectively, they showed that there was adifferent substitution rate at different codon position. Frequences of synonymous codon usage were relatively biased. The average rates of synonymous and nonsynonymous substitution were 0.0787, 0.0011 respectively, there was a significant difference between dS and dN (Z = 4.713, p.01), and the low ratio( CD = 0.0284 .3) of dN/dS ratio impled that there were selective constraints against the nonsynonymous sites in cyt-b gene, The distribution of nonsynonymous codon substitution pattern related to Grantharm distance indicated that the purified selection at 2nd codon positions was more intensive than that at 1st codon positions. The phylogenetic trees supported the view of the double origin of Chinese goose, which means that domestic Chinese goose was derived from Anser cygnoides and domestic European goose, and Yili was derived from Anser anser.

碱基含量分析可知，序列的G C含量(49.3％)＜A T含量(50.7％)，密码子第三位点的G、T含量都有较强的偏倚性；序列间G→A和T→C的转换数(22次和15次)高于A→G和C→T的转换数(10次和9次)，C→A、T→G颠换数均为2次，其余颠换模式均未发生；转换数明显高于颠换数，Ts／Tv=9.5～19，密码子第三位点的转换数最高，呈现了相当强烈的转换偏倚性；密码子第一、二和三位点的gamma分布参数α值分别为0.00572、0.01237和1.05239，表明密码子第一位点的替换速率变异最大，第二位点次之，第三位点的替换速率变异相对较小；编码同一氨基酸的同义密码子并非随机使用，表现出一定程度的使用偏倚性；同义替换速率和非同义替换速率分别为0.0787和0.0011，dS与dN值间的差异极显著(Z=4.713，p＜0.01)，而ω=0.0284，明显小于0.3，表明雁属鹅细胞色素b基因序列经历了中度净化选择作用；单步非同义替换(Sing-step nonsymonymous codon substitution，SSNCS)分布模式与Grantharm距离之间的关系说明密码子的三个位点所受的净化选择强度不同；构建的最大简约树与邻接树拓扑结构一致，支持中国家鹅的双起源学说，即除伊犁鹅外的其它中国鹅品种起源于鸿雁，伊犁鹅和欧洲的郎德鹅、莱茵鹅起源于灰雁。

It is worth noting that due to system constraints : When more than one trip expressions importing the formula.

值得指出的是，由于系统的限制：当有一个以上的访问表达进口的公式。

It is worth noting that due to system constraints : When more than one trip expressions importing the formula.

值得注意的是，由于系统的限制：当多个行词句的公式。

However, the real estate industry with high-risk birth, as well as the natural contact and financial decide the real estate financial risks are bound to exist, and real estate finance business and commercial banking and other financial institutions were closely interrelated, interdependent and mutually influence each other constraints Once risks are often incriminated each other.

但房地产业先天具备的高风险性以及和金融的天然联系决定了房地产金融风险的必然存在，且房地产金融业务与商业银行等金融机构之间联系密切，相互依存、相互影响、相互制约，一旦产生风险也往往相互连累。

It attempts to place more restrictive constraints on the conversation in Cyberspace than presently exist in the Senate cafeteria, where I have dined and heard colorful indecencies spoken by United States senators on every occasion I did.

这个法案把网络空间里的「言论尺度」限制的比在国会餐厅中还严格！我每次在那边吃饭，听到这些参议员们的言论可是比我在外面任何地方听到的还带有「颜色」且粗鄙不堪。

It attempts to place more restrictive constraints on the conversation in Cyberspace than presently exist in the Senate cafeteria, where I have dined and heard colorful indecencies spoken by United States senators on every occasion I did.

这个法案要把网络空间中交谈的「言论尺度」限制的比在国会餐厅中还严格！我每次在那边吃饭时，可是常听到这些参议员们更为「精彩」的粗鄙、下流话。

It attempts to place more restrictive constraints on the conversation in Cyberspace than presently exist in the Senate cafeteria, where I have dined and heard colorful indecencies spoken by United States senators on every occasion I did.

這個法案要把網絡空間中交談的「言論尺度」限制的比在國會餐廳中還嚴格！我每次在那邊吃飯時，可是常聽到這些參議員們更為「精彩」的粗鄙、下流話。

The Hypercore Processor crunches and ingests a blend of different tasks in parallel, subject to their synchronization constraints, automatically, and completely relieves the programmer from managing these occurrences.

每一个任务的主体是一个传统类型的有序的编码。这使得这个程序模型与其他平行的程序模型比起来非常的简单，非常接近于一个普通的单核处理器的程序模型。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48