一定的

It is more effective to filter fluoride by using combined coal bone and coagulator rather than solely using the coal bone, but not as good as using both methods.

骨碳超细粉有一定的除氟效果，但达到吸附饱和大约需90min，与实际应用还有一定的距离。

Cuttlefish bone, after a certain degree of preparation, can be a complex, this complex has a certain anti-cancer effect.

乌贼骨经过一定的制备，可以得到一种复合物，这种复合物具有一定的抗癌作用。

This system is versatility and valuable for some areas, such as remote monitoring and data transmission.

该系统具有一定的通用性，对于远程状态监测、数据传输等场合有一定的实用价值。

He thought that not only the central power, but also the village power was controlled by laborers, which caused the Taiping Heavenly Kingdom to be a revolutionary regime, and that the village power had feudality to some extend, and the peasantry was a double class, thus the central power was with feudality to some extend.

他认为，除了中央政权，乡官政权也基本上掌握在劳动群众手里，因而太平天国是农民革命政权，但是，乡官政权带有一定的封建性，农民阶级带有双重性质，使得太平天国政权也带有一定的封建性。

The electromagnetic propagation process of a Gaussian pulse through an unmagnetized plasma photonic crystal is investigated.

它具有一定的光子能带结构，一定频率的光不能在晶体中传播，从而产生了光子禁带。

The medium and highdose DNM can effectively control acute gouty arthritis and its effect is dose dependent.

中、高剂量穿山龙对急性痛风性关节炎有一定的治疗作用，其疗效具有一定的剂量依赖性。

The gross income can also be adjusted for items such as commissions and bonuses.

根据一定的工资标准，员工在一定时期内的基本收入可以是

Is that the only reason why people don't like to use pedestrian bridge?Maybe there're more reason like gangsters, drug addicts, robbers, serial killers hanging around the bridge.

其实天桥也有它一定的好处，对安全有一定的帮助，尤其是在大城市，交通繁忙，但是如果没什么车的话我还是不会用天桥，太浪费时间了，哈哈希望不会被抓到。。。

In the process of network-forming, viscosity gradually increase with time, and then level off after certain time.

化学网构改性沥青在网构化过程中，在一定的条件下，粘度随着时间的延长逐渐增大，达到一定时间后便趋于稳定。

There is some truth and objectivity in each kind of perspective of liberty and so is there limitedness and one-sidedness.

每一种自由观都有一定的真实性、客观性，也有一定的局限性和片面性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。