The certain placement of seed at the 12-20 mm level necessitates drilling rather than broadcasting . 将种子深度定为12-20毫米，采用直播比撒播优越。
Coexistence necessitates the total noninterference by any power in the internal affairs of another ... 共处必需是任何国家都决不干涉别国的内部事务。
The agglomeration and sintering of fine particles can necessitate a lowering in temperature of operation . 由于微粒易于聚集和烧结，不得不降低操作温度。
For many such uses the prime need is for a solvent with no odour, and this necessitates very careful refining . 用在这些方面时，首先要求溶剂没有气味，这就必须细心精制。
This alignment necessitates two new crossing over the mississippi river, one near chalmette and the other near luling . 在这条线路上必需有两处越过密西西比河，一处在沙尔梅特附近、另一处在卢林附近。
It severely limits the alternatives, available to the bank marketer and often necessitates the use of direct channels of distribution . 这严重限制了银行营销人员的选择性，从而必须经常使用直接销售渠道。
The recovery process necessitates waste stream segregation if water and chemical reuse are to offset capital and operational costs . 假如水和化学品回用可使投资和操作费得到补偿，则回收过程需要将废液流分开。
Changing economic and social conditions in the united states through the years necessitated the adoption of additional amendments to the constitution . 美国经济与社会状况因时而异，新宪法修正案的采用于是成为必要。
These repayment problems necessitated larger government subsidies and cast further doubt on the virtues of providing cheap credit . 这些偿付问题的出现需要政府增加补贴，而且对提供廉价贷款的优越性也提出了进一步的质疑。
For noncatalytic operations at high temperature the agglomeration and sintering of fine particles can necessitate a lowering in temperature of operation . 对于一些高温非催化操作，由于微粒易于聚集和烧结，不得不降低操作温度。
