当且仅当

If M is self-generator, then the endomorphism of right qpm-injective module M is right pm-injective ring. Finally, the properties of the endomorphism of right qpm-injective module are discussed and obtain some applications.

且仅当如果ker=ker，其中s，t∈S=End，那么Ss=S_t；(2)如果右R-模M是自生成子，那么右qpm-内射模M的自同态环是右pm-内射环。

A special case is that two distinct arguments, which belong respectively to two subevents, compete for the same θ-role. What should be done then is to make one of the arguments implicit so that every θ-role is assigned to one argument only. When the verb means bodily emission or congestion, its highly inferable argument as the entity in motion is often made implicit too, leaving an empty space for the θ-role.

比较特殊的情况是分属于两个事件的不同论元争夺同一语义角色，这时须隐藏其中一个论元，使每一个语义角色分且仅分给一个论元；而当动词意为"体物外排"或"外物内纳"时，作为运动实体的论元因为不言自明也常被隐去，留下一个语义角色空位。

Issey Miyake was seven years old when the atomic bomb was dropped on Hiroshima and as a survivor of that bombing his voice carries an unprecedented power.

作为当时年仅7岁，且是原子弹轰炸广岛后的幸存者，他的声音是前所未有的力量。

Results:(1) The conchosporangia of brown yellow mutant was smaller and mature time was 15 days later than the parents. Thallus grew slowly in early stage, but average daily growth rate reached (7.50±1.18) cm after blade length was over 60 cm.(2)The emerald conchocelis were easy to mature and had special developmental mode that the spherulocytes can directly develop into sporangial branchlets and conchosporangia without thick conchocelis stage. Emerald blades were low in RPE with just (6.4710±0.0184) mg/g dry mass. The thallus grew quickly, average daily growth rate reached (11.95±2.33) cm after blade length was over 60 cm.(3) The conchocelis filaments of breen mutant were thin and short. Thallus grew slowly and had low contents of three phycobiliprotenin and chlorophyl.

实验进行50d。结果：(1)褐黄色突变体藻蓝蛋白和别藻蓝蛋白含量低；孢子囊枝的细胞较小，且大量形成时间比亲本晚15d；幼苗培养初期日平均生长量仅为(1.22±0.28)cm，当叶片长到60cm左右时生长优势逐步凸显，日平均生长量可达(7.50±1.18)cm；(2)翠绿色丝状体容易成熟，发育方式特殊，营养藻丝不经过藻丝加粗阶段，直接由球形细胞发育成孢子囊枝和壳孢子囊；翠绿色叶状体藻红蛋白含量低，仅有(5.5130±1.0496)mg/g；叶状体生长快速，60cm长的藻体日平均生长量高达(11.95±2.33)cm；(3)褐绿色突变体藻蓝蛋白、别藻蓝蛋白和藻红蛋白这3种色素蛋白和叶绿素的含量均较低；藻丝细胞短且细，叶状体生长速度较慢。

It is true for two structures if and only if the structures\nare the same type and their corresponding fields are equal.

当且仅当两个结构是同类型而且各字段都相等时它们相等。

Fountain,that is that we have proved"a semigroup is type W if and only if it isIC quasi-adequate".In charpter 1-3,every chapter consists of one paper.

Fountain提出的一个问题，即证明了&一个半群是Type W当且仅当它是IC Quasi adequate半群&。

The payoffs of games depend on parity of starting capital. Only when p2 is equal to p3, both of them are less than 0.5, payoffs of games do not depend on starting capital. Furthermore, when p3＝0.5 playing game A and B in alternating order must be a losing game. What is more, the condition of parity of starting capital in computer simulation corresponds to minimum and maximum stationary distribution probability of theoretical analysis respectively in its feasible region.

交替玩游戏AB不存在确定的平稳分布概率，游戏得益依赖初始本金的奇偶特性，仅当p2＝p3且小于0.5时，游戏得益不依赖初始本金；2）当p3＝0.5时，交替玩游戏AB一定是输的游戏；3）计算机仿真分析中初始本金的奇偶情况对应理论分析中平稳分布概率在其可行域中分别取最小值和最大值的情形。

In this paper,it was proved that for a given m≥2,f~is topologically ergodic resp.

本文证明了：对任意m≥2， f~是拓扑遍历的当且仅当f~=f~是拓扑遍历的。

Now this situation obtains if, and only if, the end as loved moves the efficient cause to give

这一情形要成立，当且仅当被仰慕的目的促使动力因产生出所涉及的结果，如果目的没有同时贡献出因果性这一手段，那动力因将不会作用。

To avoid this result, some utilitarians claim that an act is morally wrong if and only if its consequences contain more pain than an alternative, regardless of positive values.

为了避免这一结果，声称一些功利主义者的行为是不道德的，当且仅当它包含更多的痛苦后果（或其他disvalues）比替代，无论正面的价值观。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。