保持不动

Paleontology should not stagnate at the stage dominated by paleozoology and paleobotany, but should keep synchronized with biosciences and natural sciences as a whole.

古生物学不能停留在以古动、植物学为主的阶段，而要与生命科学和整个自然科学保持同步发展。

Three major elements of life activities as mass, energy and information can be integrated in the calcium system in neuron. So it is attracting to find out how is the neuron to maintain its stability of the structure and function with the perturbation of external and internal uncertainty factors.

因此，探究神经元内钙系统在受到外部扰动或内部参数摄动等不确定因素干扰时，如何保持其结构和功能稳定对于认识神经元内钙系统本质的动态特性具有重要意义。

If frequency and pule width ratio of PWM are changed, the ripple of current, torque and so on are only influenced, when average value of armature circuit voltage is constant.

若保持电枢电路电压平均值不变，改变PWM的频率和占空比，只影响电枢电流和转矩等的脉动。

Hua Yan chants suggestion , wants to avoid having contracted glycuresis , should achieve to the full "four partial ": Know one point much , be that the knowledge to glycuresis knows one point much , gets rid of the glycuresis taking precautions against initiatively; Stop being asked the non-staple food controlling the general quantity of heat absorbing , eating vegetable much , stopping eating staple food , high heat to need to stop eating also by one point,; Move one point much , be going often, to keep certain motion amounts , make the body not to such an extent as to be too fat; Loosening one point , psychologically upset is able to strengthen insulin resistance further , urge glycuresis to happen , good psychology has taking precautions against an effect actively to glycuresis.

华燕吟建议，要避免患上糖尿病，应尽量做到&四个一点&：多懂一点，即对糖尿病的知识多懂一点，积极主动地去预防糖尿病；少吃一点，要控制摄取的总热量，多吃蔬菜，少吃主食，高热量的副食也要少吃；多动一点，要经常保持一定的运动量，使身体不至于过胖；放松一点，心理不平衡会进一步加强胰岛素抵抗，促使糖尿病发生，好的心态对糖尿病有积极的预防作用。

After hears the yellow Jinlong commander in chief's order, already succeeded the hook to live this planetoid the starships, after passed through the very short time, had achieved with the planetoid the similar speed, likely the human rode in the acceleration the airship to be same, starts the anchor chain which back and forth vibrated this time already to pull taut, and started to maintain stably, all starship pilot, already not in the worry planetoid surface more than 1200 degrees high temperatures, the thick fog group which as well as raided intermittently, after received the order then the rapid start automatic hinge machine, to this planetoid superficial fast advancement, in order to set aside the enough debarkation space for the second interspace group,This time by far looks, the entire starry sky scene, looks like a big spider to lead only to creep along innumerably small spider such, has filled the mysterious visual effect, lets the human feel incomparably shocks!

在听到黄金龙总指挥官的命令后，已经成功钩住这颗小行星的星际飞行器们，在经过很短的时间后，就与小行星达到了同样的速度，就像人乘坐加速中的飞船一样，开始来回抖动的锚链此时已经绷紧，并开始保持稳定，所有星际飞行器的驾驶员，已经不在顾虑小行星表面1200多度的高温，以及阵阵袭来的浓雾团，接到命令后便迅速启动自动铰链机，向这颗小行星的表面快速推进，以便给第二星际小组腾出足够的登陆空间来，此时远远望去，整个星空场面，就像一只大蜘蛛带领着无数只正在爬动中的小蜘蛛那样，充满了神奇的视觉效果，让人感到无比震撼！

It is advisable that live-loaded bonnets be checked for bolt torque at operating pressure, no future tightening of gasket bolting will be necessary, unless the valve has been dismantled, in which case, the gasket bolts must be torqued to appropriate values and bolt tightness rechecked after operating test pressure and temperature has been achieved.

可以在工作压力下检查动负载阀帽的螺栓扭矩，除非阀门被拆卸，否则不需要对垫圈螺栓进行紧固。在这种情况下，垫圈螺栓扭矩必须保持适当，在达到工作试验压力和温度后，应该重新检查螺栓的紧固性。

On the base of keeping the same law of motion of original thread-taking-up pole of computerized embroidery machine and relevant sizes,the disc cam with pushing bar of roller of linear motion along the axis with the spring force closure is used to design a new thread-taking-up mechanism .

保持原有电脑刺绣机挑线杆运动规律和相关尺寸不变，采用对心直动滚子推杆盘形凸轮机构，辅以弹簧力进行锁合，对原挑线机构进行了创新设计

Whenever you handle a firearm or hand it to someone, always open the action immediately and visually check the chamber, receiver and magazine to be certain they do not contain any ammunition.

枪不用时要保持开膛状态（栓动式、折开式步枪和转轮枪可以，自动武器这么做似乎不妥－－九斤注）。

At full trot, the back must remain firm and level without sway, roll, whip or roach.

正确的小跑，背线必须保持稳固、水平，不能摇摆、滚动、甩动、或拱起。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。